ASTM A20.A20M 2013.pdf

Designation: A20/A20M − 13Standard Specification for General Requirements for Steel Plates for Pressure Vessels1 This standard is issued under the fixed designation A20/A20M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope* Title of Specification ASTM DesignationA 1.1 This general requirements specification2 covers a group Pressure Vessel Plates, Carbon Steel, Manganese- A562/A562M of common requirements that, unless otherwise specified in the Titanium for Glass or Diffused Metallic Coatings applicable product specification, apply to rolled steel plates for Pressure Vessel Plates, Carbon Steel, High Strength, for A612/A612M Moderate and Lower Temperature Service pressure vessels covered by each of the following product Pressure Vessel Plates, Five Percent Nickel Alloy Steel, A645/A645M specifications issued by ASTM: Specially Heat Treated Pressure Vessel Plates, Carbon-Manganese, for A662/A662M Title of Specification ASTM DesignationA Moderate and Lower Temperature Service Pressure Vessel Plates, Alloy Steel, Nickel A203/A203M Pressure Vessel Plates, Carbon Steel, Quenched and A724/A724M Pressure Vessel Plates, Alloy Steel, Molybdenum A204/A204M Tempered, for Welded Layered Pressure Vessels Pressure Vessel Plates, Alloy Steel, Manganese- A225/A225M Pressure Vessel Plates, Alloy Steel and High-Strength A734/A734M Vanadium Low-Alloy Steel, Quenched and Tempered Pressure Vessel Plates, Carbon Steel, Low- and A285/A285M Pressure Vessel Plates, Low-Carbon Manganese- A735/A735M Intermediate-Tensile Strength Molybdenum-Columbium Alloy Steel, for Moderate and Pressure Vessel Plates, Carbon Steel, Manganese-Silicon A299/A299M Lower Temperature Service Pressure Vessel Plates, Alloy Steel, Manganese- A302/A302M Pressure Vessel Plates, Low-Carbon Age-Hardening A736/A736M Molybdenum and Manganese-Molybdenum-Nickel Nickel-Copper-Chromium-Molybdenum-Columbium Pressure Vessel Plates, Alloy Steel, 9 Percent Nickel A353/A353M Alloy Steel Double-Normalized and Tempered Pressure Vessel Plates, High-Strength Low-Alloy Steel A737/A737M Pressure Vessel Plates, Alloy Steel, Chromium- A387/A387M Pressure Vessel Plates, Heat-Treated, Carbon- A738/A738M Molybdenum Manganese-Silicon Steel, for Moderate and Lower Pressure Vessel Plates, Carbon Steel, High Strength A455/A455M Temperature Service Manganese Pressure Vessel Plates, Alloy Steel, Chromium- A832/A832M Pressure Vessel Plates, Carbon Steel, for Intermediate- A515/A515M Molybdenum-Vanadium and Higher-Temperature Service Pressure Vessel Plates, Produced by the Thermo- A841/A841M Pressure Vessel Plates, Carbon Steel, Moderate- and A516/A516M Mechanical Control Process (TMCP) Lower-Temperature Service Pressure Vessel Plates, 9 % Nickel Alloy, Produced A844/A844M Pressure Vessel Plates, Alloy Steel, High-Strength, A517/A517M by the Direct-Quenching Process Quenched and Tempered Pressure Vessel Plates, 9 % Nickel Alloy, Produced A844/A844M Pressure Vessel Plates, Alloy Steel, Quenched and A533/A533M --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- by the Direct-Quenching Process Tempered Manganese-Molybdenum and Manganese- Pressure Vessel Plates, 9 % Nickel Alloy, Produced A844/A844M Molybdenum- Nickel by the Direct-Quenching Process Pressure Vessel Plates, Heat-Treated, Carbon- A537/A537M Pressure Vessel Plates, Alloy Steel, Chromium- A1017/A1017M Manganese-Silicon Steel Molybdenum-Tungsten Pressure Vessel Plates, Alloy Steel, Quenched and A542/A542M Pressure Vessel Plates, Alloy Steel, Higher Strength A1041/A1041M Tempered Chromium-Molybdenum Chromium-Molybdenum-Tungsten Pressure Vessel Plates, Alloy Steel, Quenched and A543/A543M A Tempered Nickel-Chromium-Molybdenum These designations refer to the latest issue of the respective specification which Pressure Vessel Plates, Alloy Steel, Quenched and A553/A553M appears in the Annual Book of ASTM Standards, Vol 01.04. Tempered 8 and 9 Percent Nickel 1.1.1 This general requirements specification also covers a group of supplementary requirements that are applicable to several of the above product specifications as indicated therein. Such requirements are provided for use if additional testing or 1 additional restrictions are required by the purchaser, and apply This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee only if specified individually in the purchase order. A01.11 on Steel Plates for Boilers and Pressure Vessels. Current edition approved Oct. 1, 2013. Published October 2013. Originally 1.2 Appendix X1 provides information on coil as a source approved in 1950. Last previous edition approved in 2011 as A20/A20M – 11. DOI: of plates for pressure vessels. 10.1520/A0020_A0020M-13. 2 For ASME Boiler and Pressure Vessel Code applications, see related Specifica- 1.3 Appendix X2 provides information on the variability of tion SA-20/SA-20M in Section II of that Code. tensile properties in plates for pressure vessels. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States Copyright ASTM International Provided by IHS under license with ASTM 1Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 1.4 Appendix X3 provides information on the variability of A353/A353M Specification for Pressure Vessel Plates, Alloy Charpy-V-Notch impact test properties in plates for pressure Steel, Double-Normalized and Tempered 9 % Nickel vessels. A370 Test Methods and Definitions for Mechanical Testing 1.5 Appendix X4 provides information on cold bending of of Steel Products plates, including suggested minimum inside radii for cold A387/A387M Specification for Pressure Vessel Plates, Alloy bending. Steel, Chromium-Molybdenum A435/A435M Specification for Straight-Beam Ultrasonic 1.6 These materials are intended to be suitable for fusion Examination of Steel Plates welding. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended A455/A455M Specification for Pressure Vessel Plates, Car- use or service will be utilized. bon Steel, High-Strength Manganese A515/A515M Specification for Pressure Vessel Plates, Car- 1.7 In case of any conflict in requirements, the requirements bon Steel, for Intermediate- and Higher-Temperature Ser- of the applicable product specification prevail over those of this vice general requirements specification. A516/A516M Specification for Pressure Vessel Plates, Car- 1.8 Additional requirements that are specified in the pur- bon Steel, for Moderate- and Lower-Temperature Service chase order and accepted by the supplier are permitted, A517/A517M Specification for Pressure Vessel Plates, Alloy provided that such requirements do not negate any of the Steel, High-Strength, Quenched and Tempered requirements of this general requirements specification or the A533/A533M Specification for Pressure Vessel Plates, Alloy applicable product specification. Steel, Quenched and Tempered, Manganese-Molybdenum 1.9 For purposes of determining conformance with this and Manganese-Molybdenum-Nickel general requirements specification and the applicable product A537/A537M Specification for Pressure Vessel Plates, Heat- specification, values are to be rounded to the nearest unit in the Treated, Carbon-Manganese-Silicon Steel right-hand place of figures used in expressing the limiting A542/A542M Specification for Pressure Vessel Plates, Alloy values in accordance with the rounding method of Practice Steel, Quenched-and-Tempered, Chromium- E29. Molybdenum, and Chromium-Molybdenum-Vanadium 1.10 The values stated in either SI units or inch-pound units A543/A543M Specification for Pressure Vessel Plates, Alloy are to be regarded separately as standard. The values stated in Steel, Quenched and Tempered Nickel-Chromium- each system may not be exact equivalents; therefore, each Molybdenum system shall be used independently of the other. Combining A553/A553M Specification for Pressure Vessel Plates, Alloy values from the two systems may result in non-conformance Steel, Quenched and Tempered 8 and 9 % Nickel with the standard. A562/A562M Specification for Pressure Vessel Plates, Car- 1.11 This general requirements specification and the appli- bon Steel, Manganese-Titanium for Glass or Diffused cable product specification are expressed in both inch-pound Metallic Coatings units and SI units; unless the order specifies the applicable “M” A577/A577M Specification for Ultrasonic Angle-Beam Ex- specification designation (SI units), the plates are to be amination of Steel Plates furnished to inch-pound units. A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applica- 2. Referenced Documents tions 2.1 ASTM Standards:3 A612/A612M Specification for Pressure Vessel Plates, Car- A203/A203M Specification for Pressure Vessel Plates, Alloy bon Steel, High Strength, for Moderate and Lower Tem- Steel, Nickel perature Service A204/A204M Specification for Pressure Vessel Plates, Alloy A645/A645M Specification for Pressure Vessel Plates, 5 % Steel, Molybdenum and 51⁄2 % Nickel Alloy Steels, Specially Heat Treated A225/A225M Specification for Pressure Vessel Plates, Alloy A662/A662M Specification for Pressure Vessel Plates, Steel, Manganese-Vanadium-Nickel Carbon-Manganese-Silicon Steel, for Moderate and A285/A285M Specification for Pressure Vessel Plates, Car- Lower Temperature Service bon Steel, Low- and Intermediate-Tensile Strength A700 Practices for Packaging, Marking, and Loading Meth- A299/A299M Specification for Pressure Vessel Plates, Car- ods for Steel Products for Shipment bon Steel, Manganese-Silicon A724/A724M Specification for Pressure Vessel Plates, A302/A302M Specification for Pressure Vessel Plates, Alloy Carbon-Manganese-Silicon Steel, Quenched and Steel, Manganese-Molybdenum and Manganese- Tempered, for Welded Pressure Vessels Molybdenum-Nickel A734/A734M Specification for Pressure Vessel Plates, Alloy Steel and High-Strength Low-Alloy Steel, Quenched-and- Tempered 3 For referenced ASTM standards, visit the ASTM website, www.astm.org, or A735/A735M Specification for Pressure Vessel Plates, Low- contact ASTM Customer Service at [email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on Carbon Manganese-Molybdenum-Columbium Alloy the ASTM website. Steel, for Moderate and Lower Temperature Service --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 2Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 A736/A736M Specification for Pressure Vessel Plates, Low- 3.1.2 exclusive—when used in relation to ranges, as for Carbon Age-Hardening Nickel-Copper-Chromium- ranges of thicknesses in the tables of permissible variations in Molybdenum-Columbium Alloy Steel dimensions, the term is intended to exclude only the greater A737/A737M Specification for Pressure Vessel Plates, High- value of the range. Thus, a range from 60 to 72 in. [1500 to Strength, Low-Alloy Steel 1800 mm] exclusive includes 60 in. [1500 mm], but does not A738/A738M Specification for Pressure Vessel Plates, Heat- include 72 in. [1800 mm]. Treated, Carbon-Manganese-Silicon Steel, for Moderate 3.1.3 heat treatment terms—see 3.1.8, and Terminology and Lower Temperature Service A941. A751 Test Methods, Practices, and Terminology for Chemi- 3.1.4 hot forming—a forming operation producing perma- cal Analysis of Steel Products nent deformation, performed after the plate has been heated to A770/A770M Specification for Through-Thickness Tension the temperature required to produce grain refinement. Testing of Steel Plates for Special Applications A832/A832M Specification for Pressure Vessel Plates, Alloy 3.1.5 manufacturer—the organization that directly controls Steel, Chromium-Molybdenum-Vanadium the conversion of steel ingots or slabs, by hot rolling, into A841/A841M Specification for Steel Plates for Pressure plate-as-rolled or into coil; and for plates produced from Vessels, Produced by Thermo-Mechanical Control Pro- plate-as-rolled, the organization that directly controls, or is cess (TMCP) responsible for, one or more of the operations involved in A844/A844M Specification for Steel Plates, 9 % Nickel finishing the plates. Such finishing operations include leveling, Alloy, for Pressure Vessels, Produced by the Direct- cutting to length, testing, inspection, conditioning, heat treat- Quenching Process ment (if applicable), packaging, marking, loading for shipment, A941 Terminology Relating to Steel, Stainless Steel, Related and certification. Alloys, and Ferroalloys 3.1.5.1 Discussion—The finishing operations need not be A1017/A1017M Specification for Pressure Vessel Plates, done by the organization that did the hot rolling of the plate. Alloy Steel, Chromium-Molybdenum-Tungsten For plates produced from coil, see also 3.1.1. A1041/A1041M Specification for Pressure Vessel Plates, 3.1.6 plate identifier—the alpha, numeric, or alphanumeric Alloy Steel, Higher Strength Chromium-Molybdenum- designation used to identify the plate. Tungsten (Withdrawn 2013)4 3.1.7 plates—flat hot-rolled steel, ordered to thickness or E21 Test Methods for Elevated Temperature Tension Tests of weight and typically to width and length, commonly available Metallic Materials by size as follows: E29 Practice for Using Significant Digits in Test Data to Width, in. [mm] Thickness, in. [mm] Determine Conformance with Specifications Over 8 [200] over 0.229 [6.0 mm and over] E112 Test Methods for Determining Average Grain Size Over 48 [1200] over 0.179 [4.6 mm and over] E208 Test Method for Conducting Drop-Weight Test to 3.1.7.1 Discussion—Steel plates are available in various Determine Nil-Ductility Transition Temperature of Fer- thickness, width, and length combinations dependent upon ritic Steels equipment and processing capabilities of various manufactur- E709 Guide for Magnetic Particle Testing ers and processors. Historic limitations of a plate based upon 2.2 American Society of Mechanical Engineers Code:5 dimensions (thickness, width, and length) do not take into ASME Boiler and Pressure Vessel Code Section IX, account current production and processing capabilities. To --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Welding, Brazing, and Fusing Qualifications qualify any plate to a particular product specification requires 2.3 U.S. Federal Standard:6 that all appropriate and necessary tests be performed and that Fed. Std. No. 123 Marking for Shipment (Civil Agencies) the results meet the limits prescribed in that product specifi- 2.4 Automotive Industry Action Group Standard:7 cation. If the necessary tests required by a product specification B 1 Bar Code Symbology Standard can not be conducted, the plate can not be qualified to that specification. This general requirements specification contains 3. Terminology permitted variations for the commonly available sizes. Permit- ted variations for other sizes are subject to agreement between 3.1 Definitions of Terms Specific to This Standard: the purchaser and the manufacturer or processor, whichever is 3.1.1 coil—hot-rolled steel in coil form for processing into applicable. finished plates. 3.1.8 precipitation heat treatment—a subcritical tempera- ture thermal treatment performed to cause precipitation of 4 The last approved version of this historical standard is referenced on submicroscopic constituents, and so forth, to result in enhance- www.astm.org. ment of some desirable property. 5 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http:// 3.1.9 processor—the organization that directly controls, or www.asme.org. is responsible for, operations involved in the processing of coil 6 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, into finished plates. Such processing operations include Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:// dodssp.daps.dla.mil. decoiling, leveling, cutting to length, testing, inspection, 7 Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., conditioning, heat treatment (if applicable), packaging, Suite 200, Southfield, MI 48033, http://www.aiag.org. marking, loading for shipment, and certification. Copyright ASTM International Provided by IHS under license with ASTM 3Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 3.1.9.1 Discussion—The processing operations need not be 5.3 The ratio of reduction of thickness from a strand-cast done by the organization that did the hot rolling of the coil. If slab to plate shall be at least 3.0:1, except that reduction ratios only one organization is involved in the hot rolling and as low as 2.0:1 are permitted if all of the following limitations processing operations, that organization is termed the manu- are met: facturer for the hot rolling operation and the processor for the 5.3.1 The purchaser agrees to the use of such reduction processing operations. If more than one organization is in- ratios. volved in the hot rolling and processing operations, the 5.3.2 The applicable product specification is A299/A299M, organization that did the hot rolling is termed the manufacturer A515/A515M, A516/A516M, A537/A537M, A662/A662M, or and the organization that does one or more processing opera- A737/A737M. tions is termed a processor. 5.3.3 The specified plate thickness is 3.0 in. [75 mm] or 3.2 Refer to Terminology A941 for additional terms used in more. this standard. 5.3.4 One or more of the following low hydrogen practices are used: vacuum degassing during steelmaking; controlled 4. Ordering Information soaking of the slabs or plates; or controlled slow cooling of the slabs or plates. 4.1 Orders should include the following information, as 5.3.5 The sulfur content is 0.004 % or less, based upon heat necessary, to adequately describe the desired product. analysis. 4.1.1 Quantity (weight [mass] or number of plates), 5.3.6 One or more of the following practices are used: 4.1.2 Dimensions, electromagnetic stirring during strand casting; soft reduction 4.1.3 Name of product (for example, plates, carbon steel; during strand casting; heavy pass reductions or other special plates, alloy steel), practices during plate rolling; or combined forging and rolling 4.1.4 Specification designation (including type, class, and during plate rolling. grade as applicable) and year-date, 5.3.7 The plates are ultrasonically examined in accordance 4.1.5 Condition (as-rolled, normalized, quenched and with Specification A578/A578M, Level C based on continuous tempered, etc. If heat treatment of plate is to be performed by scanning over 100 % of the plate surface. the fabricator, this is to be stated. Also, if purchaser specifies a 5.3.8 The plates are through-thickness tension tested in heat-treatment cycle, this is to be stated), accordance with Specification A770/A770M. 4.1.6 Impact test requirements, if any (see Section 12). (For Charpy V-notch test, include test specimen orientation, testing 5.4 Unless otherwise specified in the purchase order, plates temperature, and acceptance criteria. For drop-weight test, give shall be produced from plate-as-rolled or from coil. testing temperature), 5.5 Coils are excluded from qualification to the applicable 4.1.7 Exclusion of either plates produced from coil or plates product specification until they are decoiled, leveled, cut to produced from plate-as-rolled, if applicable. (See 5.4 and length, and tested by the processor in accordance with the Appendix X1.) specified requirements (see Sections 9, 10, 11, 12, 13, 14, 15, 16, and 20.) --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- 4.1.8 Limits for grain refining elements other than aluminum, if applicable (see 8.3.2), 5.5.1 Plates produced from coil shall not contain splice 4.1.9 Paint marking (see 13.2.1), welds, unless approved by the purchaser. 4.1.10 Supplementary requirements, if any (test specimen heat treatment, special impact test requirements, etc.), and 6. Heat Treatment: 4.1.11 Additional requirements, if any. 6.1 If plates are required to be heat treated, the heat treatment shall be performed by the manufacturer, the 5. Materials and Manufacture processor, or the fabricator, unless otherwise specified in the 5.1 The steel shall be made in an open-hearth, basic-oxygen, applicable product specification. or electric-arc furnace, possibly followed by additional refining 6.2 If the heat treatment required by the applicable product in a ladle metallurgy furnace (LMF), or by another method; or specification is to be performed by the purchaser or the secondary melting by vacuum-arc remelting (VAR), electro- purchaser’s agent, and the plates are to be supplied by the slag remelting (ESR), or another method. manufacturer or processor in a condition other than that 5.2 The steel may be strand cast or cast in stationary molds. required by the applicable product specification, the order shall 5.2.1 Strand Cast Slabs: so state. 5.2.1.1 If heats of the same nominal chemical composition 6.2.1 If plates are ordered without the heat treatment re- are consecutively strand cast at one time, the heat number quired by the applicable product specification, heat treatment assigned to the cast product (slab) may remain unchanged until of the plates to conform to the requirements of the applicable all of the steel in the slab is from the following heat. product specification shall be the responsibility of the pur- 5.2.1.2 When two consecutively strand cast heats have chaser. different nominal chemical composition ranges, the manufac- 6.3 If heat treatment is to be performed, the plates shall be turer shall remove the transition material by any established heat treated as specified in the applicable product specification. procedure that positively separates the grades. The purchaser may specify the heat treatment to be used, Copyright ASTM International Provided by IHS under license with ASTM 4Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 provided it is not in conflict with the requirements of the TABLE 1 Limits on Elements (see and ) applicable product specification. Copper, max % A Heat analysis 0.40 Product analysis 0.43 6.4 If normalizing is to be performed by the fabricator, the plates shall be either normalized or heated uniformly for hot Nickel, max %A Heat analysis 0.40 Product analysis 0.43 forming, provided that the temperature to which the plates are heated for hot forming does not significantly exceed the Chromium, max %A,B Heat analysis 0.30 normalizing temperature. Product analysis 0.34 6.5 If no heat treatment is required, the manufacturer or Molybdenum, max %A,B Heat analysis 0.12 processor shall have the option of heat treating the plates by Product analysis 0.13 normalizing, stress relieving, or normalizing and then stress Vanadium, max %C Heat analysis 0.03 relieving to meet the requirements of the applicable product Product analysis 0.04 specification. Columbium, max %D Heat analysis 0.02 6.6 If approved by the purchaser, cooling rates faster than Product analysis 0.03 those obtained by cooling in air are permissible to achieve Titanium, max %E Heat analysis 0.03 specified mechanical properties, provided that the plates are Product analysis 0.04 subsequently tempered in the temperature range from 1100 to Boron, max % Heat analysis 0.0010 1300°F [595 to 705°C]. Product analysis 0.0015 A In addition for each heat, based upon the heat analysis, the sum of copper, 7. Chemical Composition nickel, chromium, and molybdenum shall not exceed 1.00 %, unless one or more of those elements are specified or restricted by the applicable product specification 7.1 Heat Analysis: for the applicable grade, class, and type. 7.1.1 Sampling for chemical analysis and methods of B In addition for each heat, based upon the heat analysis, the sum of chromium analysis shall be in accordance with Test Methods, Practices, and molybdenum shall not exceed 0.32 %, unless one or both of those elements are specified or restricted by the applicable product specification for the applicable and Terminology A751. grade, class, and type. 7.1.2 For each heat, the heat analysis shall include determi- C By agreement between the purchaser and the supplier, the heat analysis limit for vanadium is permitted to be increased to a value not higher than 0.10 %, and the nation of the content of carbon, manganese, phosphorus, sulfur, product analysis limit for vanadium is permitted to be increased to a value not silicon, nickel, chromium, molybdenum, copper, vanadium, higher than 0.11 %. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- D columbium; any other element that is specified or restricted by By agreement between the purchaser and the supplier, the heat analysis limit for columbium is permitted to be increased to a value not higher that 0.05 %, and the the applicable product specification for the applicable grade, product analysis limit for columbium is permitted to be increased to a value not class, and type; aluminum, if the aluminum content is to be higher than 0.06 %. E used in place of austenitic grain size testing of the heat (see By agreement between the purchaser and the supplier, the heat analysis limit for titanium is permitted to be increased to a value not higher than 0.04 %, and the 8.3.2.1); and any other austenitic grain refining element for product analysis limit for titanium is permitted to be increased to a value not higher which limits are specified in the purchase order (see 8.3.2). than 0.05 %. 7.1.3 Heat analyses shall conform to the heat analysis requirements of the applicable product specification for the applicable grade, class, and type. In addition, for elements that are listed in Table 1 but are not specified or restricted in the 7.3 Referee Analysis—For referee purposes, Test Methods, applicable product specification for the applicable grade, class, Practices, and Terminology A751 shall be used. and type, heat analyses shall conform to the applicable heat analysis limits given in Table 1. 8. Metallurgical Structure 7.2 Product Analysis: 8.1 Where austenitic grain size testing is required, such 7.2.1 Sampling for chemical analysis and methods of analy- testing shall be a McQuaid Ehn test in accordance with Test sis shall be in accordance with Test Methods, Practices, and Methods E112 and at least 70 % of the grains in the area Terminology A751. examined shall meet the specified grain size requirement. 7.2.2 For each plate-as-rolled, the purchaser shall have the option of chemically analyzing a broken tension test specimen 8.2 Coarse Austenitic Grain Size—Where coarse austenitic or a sample taken from the same relative location as that from grain size is specified one austenitic grain size test per heat which the tension test specimen was obtained. shall be made and the grain size number so determined shall be 7.2.3 For elements that are specified or restricted by the in the range of 1 to 5 inclusive. applicable product specification for the applicable grade, class, 8.3 Fine Austenitic Grain Size: and type, product analyses shall conform to the product 8.3.1 Except as allowed in 8.3.2, and when fine austenitic analysis requirements of the applicable product specification grain size is specified, or when the producer elects to determine for the applicable grade, class, and type. the grain size, one McQuaid Ehn test per heat shall be made 7.2.4 For elements that are listed in Table 1 but are not and the austenitic grain size number so determined shall be 5 specified or restricted by the applicable product specification or higher, and the chemical requirements of 8.3.2 do not apply. for the applicable grade, class, and type, product analyses shall NOTE 1—Such austenitic grain size numbers may be achieved with conform to the applicable product analysis limits given in lower contents of austenitic grain refining elements than 8.3.2 requires for Table 1. austenitic grain size testing to be waived. Copyright ASTM International Provided by IHS under license with ASTM 5Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 8.3.2 Unless testing for fine austenitic grain size is specified 9.3.6 Indications on the edges of a plate cut during the in the purchase order or the producer elects to test for fine fabrication shall be cause for rejection of the plate at the austenitic grain size, the austenitic grain size test need not be discretion of the purchaser if the magnitude exceeds the limits made for any heat that has, by heat analysis, one or more of the given in Columns 5 and 6 of Table A1.14 [A2.14]. The defects following: may be removed and replaced with weld metal (see 9.4). 8.3.2.1 A total aluminum content of 0.020 % or more. 9.3.7 Fabricators should be aware that edge cracks may 8.3.2.2 An acid soluble aluminum content of 0.015 % or initiate upon bending a sheared or burned edge during the more. fabrication process. This is not considered to be a fault of the 8.3.2.3 A content for an austenitic grain refining element steel, but is rather a function of the induced cold work or heat that exceeds the minimum value agreed to by the purchaser as affected zone. being sufficient for austenitic grain size testing to be waived. 9.4 Repair by Welding: 8.3.2.4 Contents for the combination of two or more auste- 9.4.1 Repair welding shall be permitted only with the nitic grain refining elements that exceed the applicable mini- approval of the purchaser. mum values agreed to by the purchaser as being sufficient for 9.4.2 Preparation for repair welding shall include inspection austenitic grain size testing to be waived. to confirm complete removal of the defect. 8.3.2.5 The analysis for the elements mentioned in 8.3.2.1, 9.4.3 Repairs shall be made utilizing welding procedures 8.3.2.2, 8.3.2.3, or 8.3.2.4 shall be included in the test report. qualified in accordance with Section IX of the ASME Boiler and Pressure Vessel Code and repair welding 9. Quality shall be done by welders or welding operators meeting the 9.1 General—Plates shall be free of injurious defects and qualification requirements of Section IX. shall have a workmanlike finish. 9.4.4 The weld metal shall have the A-number analysis corresponding to the equivalent ASME P-number of the plate, 9.2 Surface Imperfections: except that A-1 or A-2 analysis weld metal may be employed 9.2.1 For plates produced from plate-as-rolled, all injurious for P-1 plates. Other weld metals may be employed that are surface imperfections shall be removed by the manufacturer. compatible with the plate being repaired, if so approved by the For plates produced from coil, all injurious surface imperfec- purchaser. Such weld metals shall be qualified in accordance tions shall be removed by the processor. with the requirements of Section IX of the 9.2.1.1 Shallow imperfections shall be ground to sound ASME Boiler and Pressure Vessel Code. metal; the ground area shall be well faired and the thickness of 9.4.5 If Charpy impact tests of the plate are required, the the ground plate shall not be reduced below the minimum welding procedure qualification tests shall also include Charpy thickness permitted. impact tests of the weld, the heat-affected zone, and the plate, 9.2.1.2 All surface imperfections, the removal of which will and the test results shall be reported to the purchaser. reduce the plate thickness below the minimum thickness 9.4.6 If the plate is subjected to normalizing, quenching and permitted, shall be cause for rejection of the plate, except that, tempering, hot forming, or post-weld heat treating, the welding by agreement with the purchaser, the metal so removed may be procedure qualification test plates and the weld repaired plate replaced with weld metal (see 9.4). shall be subjected to the thermal heat treatment as specified by 9.3 Edge Imperfections: the purchaser. 9.3.1 Laminar-type discontinuities 1 in. [25 mm] and less in 9.4.7 In addition, repair welds shall meet the requirements length visible to the unaided eye on an edge of a plate as of the construction code specified by the purchaser. prepared for shipment by the manufacturer or processor are 10. Test Methods acceptable and do not require exploration. 10.1 All tests shall be conducted in accordance with Test 9.3.2 All larger discontinuities shall be explored to deter- Methods and Definitions A370. mine their depth and extent. Discontinuities shall be considered continuous when located in the same plane within 5 % of the 10.2 Yield strength shall be determined by either the 0.2 % plate thickness and separated by a distance less than the length offset method or the 0.5 % extension under load method, unless of the smaller of two adjacent discontinuities. otherwise stated in the applicable product specification. 9.3.3 Indications visible to the unaided eye on the cut edges 10.3 Rounding Procedures—For purposes of determining of a plate as prepared for shipment by the manufacturer or conformance with the applicable product specification, a cal- processor shall not exceed the limits given in Columns 1 and 2 culated value shall be rounded to the nearest 1 ksi [5 MPa] for of Table A1.14 [A2.14]. tensile and yield strengths, and to the nearest unit in the 9.3.4 Larger indications shall be removed by the manufac- right-hand place of figures used in expressing the limiting turer or processor by grinding, provided that the resultant value for other values, in accordance with the rounding method cavity does not exceed the limits given in Columns 3 and 4 of given in Practice E29. Table A1.14 [A2.14]. 9.3.5 Indications of greater magnitude shall be cause for 11. Tension Tests rejection of the plate, except that, by agreement with the 11.1 Number of Test Coupons: purchaser, the defects may be removed and replaced with weld 11.1.1 Plates Produced from As-Rolled Plates—For other metal (see 9.4). than quenched and tempered plates, one tension test coupon --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 6Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 shall be taken from each plate-as-rolled. Two tension test product specification or the purchase order. If the heat- coupons shall be taken from each quenched and tempered treatment temperatures are not specified, the manufacturer or plate, as heat treated. If plates are furnished by the manufac- processor shall heat treat the coupons under conditions it turer or processor in accordance with 11.4.2 and qualified by considers appropriate. The purchaser shall be informed of the using test specimens taken from heat-treated test coupons procedure followed in heat treating the specimens. (including normalized, normalized and tempered, and 11.4.3 If approved by the purchaser, the procedures of quenched and tempered), one tension test coupon shall be 11.4.2 may be implemented on plates heat treated by the taken from each plate-as-rolled (see Terminology A941 for the manufacturer or processor. definition of plate-as-rolled). 11.4.4 For plates that are heat treated with a cooling rate 11.1.2 Plates Produced from Coil and Furnished without faster than still-air cooling from the austenitizing temperature, Heat Treatment or with Stress Relieving Only—Except as one of the following shall apply in addition to other require- allowed by 11.1.2.1 and 11.1.4, a minimum of three tension ments specified herein: coupons shall be taken from each coil as follows: 11.4.4.1 The gage length of the tension test specimen shall 11.1.2.1 The first test coupon shall be taken immediately be taken at least 1T from any as-heat treated edge, where T is prior to the first plate to be qualified to the applicable product the thickness of the plate, and shall be at least 1⁄2 in. [12.5 mm] specification, the second test coupon shall be taken from the from flame-cut or heat-affected-zone surfaces. approximate center lap, and the third test coupon shall be taken 11.4.4.2 A steel thermal buffer pad, 1 T by 1T by at least 3T, immediately after the last plate to be qualified to the applicable shall be joined to the plate edge by a partial penetration weld product specification. If, during decoiling, the amount of completely sealing the buffered edge prior to heat treatment. material decoiled is less than that required to reach the next 11.4.4.3 Thermal insulation or other thermal barriers shall standard test location, a test for qualification of that particular be used during the heat treatment adjacent to the plate edge portion of the coil shall be made from a test coupon taken from where the test specimens are to be removed. It shall be a location adjacent to the innermost portion decoiled. demonstrated that the cooling rate of the tension test specimen 11.1.2.2 All plates between any two test locations that meet is no faster than, and not substantially slower than, that attained the requirements of the applicable product specification are by the method described in 11.4.4.2. acceptable. 11.4.4.4 When test coupons cut from the plate but heat 11.1.2.3 All plates between a test location that fails to meet treated separately are used, the coupon dimensions shall be not the requirements of the applicable product specification and an less than 3T by 3T by T and each tension test specimen cut adjacent test location that meets the requirements of the from it shall meet the requirements of 11.4.4.1. applicable product specification are rejectable, except that the 11.4.4.5 If cooling rate data for the plate and cooling rate processor has the option to make other tests after cutting back control devices for the test coupons are available, the test the coil in either direction. coupons may be heat treated separately in the device, provided 11.1.3 Plates Produced from Coil and Furnished Heat that this method is approved by the purchaser. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Treated by Other than Stress Relieving—For other than 11.5 Test Specimen Preparation: quenched and tempered plates, one tension test coupon shall be 11.5.1 Tension test specimens for plates 3⁄4 in. [20 mm] and taken from each coil. Two tension test coupons shall be taken under in thickness shall be the full thickness of the plates. The from each quenched and tempered plate, as heat treated. test specimens shall conform to the requirements for either the 11.1.4 Plates Produced from Coil and Qualified Using Test 11⁄2-in. [40-mm] wide or the 1⁄2-in. [12.5-mm] wide rectangular Specimens Taken from Test Coupons Heat Treated by Other tension test specimen of Test Methods and Definitions A370. than Stress Relieving—One tension test coupon shall be taken The 11⁄2-in. [40-mm] wide test specimen may have both edges from each coil. parallel. The 1⁄2-in. [12.5–mm] wide specimen may have a 11.2 Orientation of Test Specimens—The longitudinal axis maximum nominal thickness of 3⁄4 in. [20 mm]. of the tension test specimens shall be transverse to the final 11.5.2 For plates up to 4 in. [100 mm], inclusive, in rolling direction of the plate. thickness, tension test specimens may be the full thickness of the plate and conform to the requirements for the 11⁄2-in. 11.3 Location of Test Coupons—Tension test coupons shall [40–mm] wide rectangular tension test specimen of Test be taken from a corner of the plate. For quenched and tempered Methods and Definitions A370 if adequate testing machine plates, the two tension test coupons shall be taken from capacity is available. opposite ends of the plate. 11.5.3 For plates over 3⁄4 in. [20 mm] in thickness, except as 11.4 Tests from Heat-Treated Plates: permitted in 11.5.2, tension test specimens shall conform to the 11.4.1 If heat treatment is performed by the manufacturer or requirements for the 0.500-in. [12.5-mm] diameter test speci- processor, the test specimens shall be taken from the plate in men of Test Methods and Definitions A370. The axis of the test the heat-treated condition or from full-thickness coupons specimen shall be located midway between the center of simultaneously heat treated with the plate. thickness and the top or bottom surface of the plate. 11.4.2 If heat treatment is to be performed by the fabricator, 11.6 Elongation Requirement Adjustments: the plates shall be accepted on the basis of tests made on test 11.6.1 Due to the specimen geometry effect encountered specimens taken from full-thickness coupons heat treated in when using the rectangular tension test specimen for testing accordance with the requirements specified in the applicable thin plate, adjustments in elongation requirements must be Copyright ASTM International Provided by IHS under license with ASTM 7Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 provided for thicknesses under 0.312 in. [8 mm]. Accordingly, fication A20/A20M does not provide assurance that all prod- the following deductions shall be made from the base elonga- ucts of a plate-as-rolled will be identical in tensile properties tion requirements in the applicable product specification: with the products tested. If the purchaser wishes to have more Elongation confidence than that provided by Specification A20/A20M Plate Nominal Thickness Range, in. [mm] Deduction, % testing procedures, additional testing or requirements, such as 0.299–0.311 [7.60–7.89] 0.5 0.286–0.298 [7.30–7.59] 1.0 Supplementary Requirement S4, should be imposed. 0.273–0.285 [7.00–7.29] 1.5 11.8 Appendix X2 provides additional information on the 0.259–0.272 [6.60–6.99] 2.0 0.246–0.258 [6.20–6.59] 2.5 variability of tensile properties in plates for pressure vessels. 0.233–0.245 [5.90–6.19] 3.0 0.219–0.232 [5.50–5.89] 3.5 12. Notch-Toughness Tests 0.206–0.218 [5.20–5.49] 4.0 0.193–0.205 [4.90–5.19] 4.5 12.1 Charpy V-Notch Tests: less than 0.193 [4.90] 5.0 12.1.1 Number of Tests—Except for quenched and tempered 11.6.2 Due to the inherently lower elongation that is obtain- plates, and except as allowed by 12.1.1.1 and 12.1.1.2, one able in thicker plate, adjustments in elongation requirements in impact test (3 specimens) for each specified orientation (see 2-in. [50-mm] gage length shall be provided for thicknesses 12.1.2) shall be made from each plate-as-rolled. For quenched over 3.5 in. [90 mm]. Accordingly, the following deductions and tempered plates, one impact test shall be made from each shall be made from the base elongation requirements in 2 in. plate, as heat treated. [50 mm] prescribed in the applicable product specification: 12.1.1.1 Plates Ordered Without the Heat Treatment Speci- Plate Nominal Thickness Range, in. [mm] Elongation fied by the Applicable Product Specification—If the applicable Deduction, % product specification requires heat treatment but the plates are 3.501–3.999 [90.00–102.49] 0.5 4.000–4.499 [102.50–114.99] 1.0 ordered without such heat treatment and Charpy V-notch tests 4.500–4.999 [115.00–127.49] 1.5 are specified, one coupon shall be taken from each plate-as- 5.000–5.499 [127.50–139.99] 2.0 rolled. The coupon shall be heat treated in accordance with the 5.500–5.999 [140.0–152.49] 2.5 6.000 and thicker [152.50 and thicker] 3.0 applicable product specification and the purchase order and the plate shall be qualified by test specimens taken from the 11.6.3 A characteristic of certain types of alloy steels is a heat-treated coupon. local disproportionate increase in the degree of necking down 12.1.1.2 Plates Produced from Coil—If Charpy V-notch or contraction of the test specimens during the tension test, tests are specified, the number of impact tests required shall be resulting in a decrease in the percentage of elongation as the the same as the number specified for tension tests in 11.1.2 or gage length is increased. The effect is not so pronounced in 11.1.3, whichever is applicable. The test coupons shall be taken thicker plates. For such material, if so stated in the applicable from the material after decoiling and leveling. product specification for plates up to 3⁄4 in. [20 mm], inclusive, 12.1.2 Orientation of Test Specimens—The long axis of the in thickness, if the percentage of elongation of an 8-in. test specimens shall be oriented either longitudinal (parallel to [200-mm] gage length test specimen falls not more than 3 the final direction of rolling) or transverse (transverse to the percentage points below the amount prescribed, the elongation final direction of rolling), as specified in the applicable product shall be considered satisfactory if the percentage of elongation specification or the purchase order. in 2 in. [50 mm] across the break is not less than 25 %. 12.1.3 Location of Test Coupons—The impact test coupons 11.6.4 The tensile requirements tables in many of the shall be taken adjacent to the tension test coupons. The impact product specifications covered by this general requirements test coupons shall be subject to the same requirements as those specification specify elongation requirements in both 8-in. specified for tension tests in 11.4, except that the provisions of [200-mm] and 2-in. [50-mm] gage lengths. Unless otherwise 11.4.4.1 apply to the area under the notch of the impact test provided in the applicable product specification, both require- specimen instead of to the gage length of the tension test ments are not required to be applied simultaneously, and the specimen. elongation need only be determined in the gage length appro- 12.1.4 Test Method—Impact testing shall be performed in priate for the test specimen used. After selection of the accordance with Test Methods and Definitions A370 using appropriate gage length, the elongation requirement for the Charpy V-notch (Type A) specimens as shown in Test Methods alternative gage length shall be deemed not applicable. and Definitions A370. Except as allowed by 12.1.4.1, full-size 11.7 This specification does not provide requirements for specimens (0.394 by 0.394 in. [10 by 10 mm]) shall be used if product tension testing subsequent to shipment (see 15.1). the plate thickness permits, and their central axis shall corre- Therefore, the requirements of 11.1 through 11.6 and Section spond as near as practical to the 1⁄4t plane in the plate thickness 16 apply only for tests conducted at the place of manufacture t. If the plate thickness is insufficient to obtain full-size prior to shipment. Compliance to Specification A20/20M and specimens, the largest possible subsize specimens shall be the applicable product specification does not preclude the used. possibility that product tension test results may vary outside 12.1.4.1 For plates that normally have absorbed energy specified ranges. The tensile properties will vary within the values in excess of 180 ft·lbf [245 J] if tested using full-size same plate-as-rolled or piece, be it as-rolled, control-rolled, or specimens at the specified testing temperature, subsize 0.394 heat-treated. The purchaser should, therefore, be aware that by 0.264 in. [10 by 6.7 mm] specimens may be used in lieu of tension testing in accordance with the requirements of Speci- full-size specimens; however, if this option is used, the --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 8Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 acceptance value shall be 75 ft·lbf [100 J] minimum for each the manufacturer (for plates produced in discrete cut lengths of test specimen and the lateral expansion in mils [micrometres] flat product) or the processor (for plates produced from coil and shall be reported. for subdivided plates (see 13.4)). 12.1.5 Test Temperature—The test temperature shall be as 13.1.2 Plates that are required to be heat treated, but have specified in the purchase order, except that the manufacturer or not been so heat treated, shall be marked, by the manufacturer processor shall have the option of using a lower test tempera- or processor, with the letter “G” (denoting green) following the ture. If a test temperature is not specified in the purchase order, required ASTM designation mark, except that “G” marking is tests shall be conducted at a temperature no higher than is not necessary if such plates are for shipment, for the purpose of given in Table A1.15 [A2.15] for the applicable product obtaining the required heat treatment, to an organization under specification, grade, class, and plate thickness. The actual test the manufacturer’s control. Such plates shall have been quali- temperature used shall be reported with the test results. fied for shipment on the basis of test specimens that have been 12.1.6 Acceptance Criteria—Unless otherwise agreed upon, so heat treated. Plates that are required to be heat treated, and the acceptance criteria shall be as given in Table A1.15 [A2.15] have been so heat treated, shall be marked, by the party that for the applicable product specification, grade, class, and plate performed the heat treatment, with the letters “MT” (denoting thickness. material treated) following the required ASTM designation 12.1.6.1 If the acceptance criteria is based upon energy mark. absorption of a full-size specimen, the acceptance criteria for NOTE 2—Any stress relief of test specimens intended to simulate the various subsize specimens shall be as given in Table A1.16 post-weld heat treatment is not included in the above heat treatment. [A2.16], except as otherwise provided in 12.1.4.1. 13.2 Types of Marking: 12.1.6.2 If the acceptance criterion is based upon lateral 13.2.1 Except as allowed by 13.4, the required markings for expansion opposite the notch, the acceptance value shall be the plates over 1⁄4 in. [6 mm] in thickness shall be by steel die same for all sizes of test specimens. stamping, unless paint marking is specified in the purchase 12.1.7 Marking—The letters “LTV” shall be stenciled or order. stamped on each plate following the class number, grade, etc. 13.2.2 Except as allowed by 13.4, the required markings for 12.1.8 Variability—The impact properties of steel can vary plates 1⁄4 in. [6 mm] and under in thickness shall be by paint within the same plate-as-rolled or piece, be it as-rolled, marking or by steel die stamping using low-stress (either control-rolled, or heat-treated. The purchaser should, therefore, round-nose or interrupted-dot) impressions. be aware that testing of one plate-as-rolled does not provide assurance that all locations within a plate-as-rolled will be 13.3 Location of Markings: identical in toughness with the location tested. Normalizing or 13.3.1 Except as allowed by 13.4, the required markings for quenching and tempering the product will reduce the degree of plates with a maximum lengthwise or crosswise dimension variation. more than 72 in. [1800 mm] shall be in at least two places on 12.1.8.1 Appendix X3 provides additional information on each finished plate, at least 12 in. [300 mm] from the edges of the variability of Charpy V-notch test properties in plates for the plate. pressure vessels. 13.3.2 Except as allowed by 13.4, the required markings for 12.2 Drop-Weight Tests: plates with a maximum lengthwise and crosswise dimension of 12.2.1 Where specified, one drop-weight test, consisting of 72 in. [1800 mm] or less shall be in at least one place on each a set of two test specimens, shall be made to the same finished plate, approximately midway between the center and frequency stated in 12.1.1 in accordance with Method E208. an edge of the plate. 12.2.2 The test coupons shall be obtained adjacent to a 13.4 Subdivided Plates: tension test coupon. For plates produced from coil, the test 13.4.1 By agreement between the purchaser and the manu- coupon locations shall be the same as for Charpy V-notch tests. facturer or processor, each subdivided plate (a plate separated (See 12.1.) The provisions of 12.1.3 shall also apply. from a master plate) shall be legibly marked with the name, 12.2.3 The testing temperature shall be as specified in the brand, or trademark of the organization that subdivided the applicable product specification or the purchase order. plate plus a code traceable to the required markings, provided 12.2.4 Acceptance shall be on the basis of no-break perfor- that the information required in 13.1, cross referenced to that mance of both test specimens at the specified testing tempera- code, is furnished with the plates. ture. 13.4.2 By agreement between the purchaser and the manu- 12.2.5 The plates shall be marked as required in 12.1.7, facturer or processor, subdivided plates that are from the same except that the letters “LTD” shall be used instead of “LTV.” master plate and placed in secured lifts shall have the infor- mation required in 13.1 paint marked on the top piece of each 13. Identification of Plates lift or shown on a substantial tag attached to each lift. 13.1 Required Markings: 13.1.1 Except as allowed by 13.4, plates shall be legibly 13.5 Bar Coding—In addition to the requirements of 13.1 to marked with the following information: applicable ASTM 13.4 inclusive, the manufacturer or processor shall have the designation (see 1.1) (year of issue not required); “G” or“ MT” option of using bar coding as a supplementary identification if applicable (see 13.1.2); applicable grade, type, and class; method. heat number; plate identifier; and name, brand, or trademark of NOTE 3—Bar coding should be consistent with AIAG Standard B 1. --`,,,,,```,,``,,,,``,`,`, Copyright ASTM International Provided by IHS under license with ASTM 9Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 14. Permissible Variations in Dimensions or Mass is more than 3⁄4 in. [20 mm] from the center of the gage length 14.1 One cubic foot of rolled steel shall be assumed to of a 2-in. [50-mm] test specimen or is outside the middle half weigh 490 lb, unless otherwise stated in the applicable product of the gage length of an 8-in. [200-mm] test specimen as specification. One cubic metre of rolled steel is assumed to indicated by scribe marks on the test specimen before testing, have a mass of 7850 kg, unless otherwise stated in the one retest shall be allowed. applicable product specification. 16.1.3 If the results from an original tension test specimen fail to meet the specified requirements but are within 2 ksi [10 14.2 For carbon steel plates the permissible variations for MPa] of the required tensile strength or within 1 ksi [5 MPa] dimensions shall not exceed the applicable limits stated in of the required yield strength or yield point, or within 2 Annex A1, Table A1.1 to Table A1.9, and Table A1.13 [Annex percentage points of the required elongation or reduction of A2, Table A2.1 to Table A2.9, and Table A2.13]. area, one retest shall be permitted to replace the failing test. 14.3 For alloy steel plates the permissible variations for 16.1.4 The results of the retest shall meet the specified dimensions shall not exceed the applicable limits stated in requirements. Annex 1, Table A1.1 to Table A1.4, Table A1.8, and Table 16.2 Charpy V-Notch Tests: A1.10 to Table A1.13. [Annex 2, Table A2.1 to Table A2.4, 16.2.1 The retest provisions of Test Methods and Defini- Table A2.8 and Table A2.10 to Table A2.13]. tions A370 shall apply, except that the 5 ft·lbf [7 J] absolute 14.4 Conversions of Permitted Variations from Fractions of minimum for an individual specimen shall not apply if two an Inch to Decimals—Permitted variations in dimensions for thirds of the specified minimum average is less than 5 ft·lbf [7 products covered by this specification are generally given as J]. fractions of inch and these remain the official permitted 16.2.2 If Charpy V-notch impact test lateral expansion variations, where so stated. If the material is to be measured by values are specified, if the value of one specimen falls below equipment reporting dimensions as decimals, conversion of the specified minimum value and not below 2⁄3 of the specified permitted variations from fractions of an inch to decimals shall minimum value, and if the average of the three specimens be made to three decimal places; using the rounding method equals or exceeds the specified minimum value, a retest of prescribed in Practice E29. three additional specimens may be made. Each of the three retest specimens shall equal or exceed the specified minimum 15. Inspection and Testing value. 15.1 The inspector representing the purchaser shall have 16.2.3 If the required values are not obtained on Charpy entry at all times while work on the contract of the purchaser V-notch retests as specified in 16.2.1 and16.2.2, or if the values is being performed, to all parts of the manufacturer’s works in the initial test are below the values required for retest, no that concern the manufacture of the plate ordered. The manu- further retests are permitted unless the plate is heat treated or facturer shall afford the inspector all reasonable facilities to be reheat treated. After heat treatment or reheat treatment, a set of --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- satisfied that the plate is being furnished in accordance with three specimens shall be tested and each shall equal or exceed this general requirements specification, the applicable product the specified minimum value. specification, and the purchase order. All tests (except product 16.2.4 If the option of 12.1.4.1 is used and the test result analysis) and inspection shall be made at the place of manu- falls below the 75 ft·lbf [100 J] minimum specified, another test facture prior to shipment, unless otherwise specified, and shall may be made using full-size test specimens. be so conducted as not to interfere unnecessarily with the operation of the manufacturer’s works. 17. Retreatment 15.2 If plates are produced from coil, 15.1 shall apply to the 17.1 If any heat-treated plate fails to meet the mechanical “processor” instead of to the “manufacturer” and the “place of requirements of the applicable product specification, the manu- process” shall apply instead of the “place of manufacture.” If facturer or processor shall have have the option of heat treating plates are produced from coil and the processor is different the plate again. All mechanical-property tests shall be repeated from the manufacturer, the inspector representing the purchaser and the plate surface shall be reexamined for surface defects shall have free entry, at all times while work on the contract of when it is resubmitted for inspection. the purchaser is being performed, to all parts of the manufac- 18. Rejection turer’s works that concern the manufacture of the plate ordered. 18.1 Any rejection based upon product analysis made in accordance with the applicable product specification shall be 16. Retests reported to the supplier and samples that represent the rejected 16.1 Tension Test—In addition to the provisions of Test plate shall be preserved for 2 weeks from the date of notifica- Methods and Definitions A370, the following retest provisions tion of such rejection. In case of dissatisfaction with the results shall apply: of the tests, the supplier shall have the option of making claim 16.1.1 If any test specimen shows defective machining, or for a rehearing within that time. develops flaws, it may be discarded and another test specimen 18.2 Plates that show injurious defects subsequent to their substituted. acceptance at the manufacturer’s or processor’s works may be 16.1.2 If the percentage of elongation of any tension test rejected. In such cases, the manufacturer or processor shall be specimen is less than that specified, and any part of the fracture notified. Copyright ASTM International Provided by IHS under license with ASTM 10 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 19. Test Reports 19.6 For plates produced from coil and furnished without heat treatment or with stress relieving only, the results of all 19.1 The manufacturer or processor shall report the results tests required by 11.1.2 shall be reported for each qualifying of all tests required by the applicable product specification, the coil. applicable supplementary requirements, and the purchase or- der. The heat number, the plate identifier of the plate tested, and 19.7 A signature is not required on the test report; however, the nominal plate thickness shall be shown on the test report. the document shall clearly identify the organization submitting The year-date of the specification to which the plates are the report. Notwithstanding the absence of a signature, the furnished shall be included in the test report. organization submitting the report is responsible for the content --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- 19.1.1 In reporting elongation values, both the percentage of the report. increase and the original gage length shall be stated. 19.8 Copies of the original manufacturer’s test report shall be included with any subsequent test report. 19.2 For plates rolled from a strand-cast slab with a reduc- tion ratio in the range from 2.0:1 to 3.0:1, exclusive, the 19.9 A test report, certificate of compliance, or similar specific practices (see 5.3.4 and 5.3.6) that were used by the document printed from or used in electronic form from an manufacturer shall be reported, and the test reports shall state electronic data interchange (EDI) transmission shall be re- that the limitations of 5.3 have been met. garded as having the same validity as a counterpart printed in the certifier’s facility. The content of the EDI transmitted 19.3 All heat treatment, exclusive of subcritical heating to document must meet the requirements of the invoked ASTM soften thermally cut edges, shall be reported, including tem- standard(s) and conform to any existing EDI agreement be- perature ranges and times at temperature. This exclusion does tween the purchaser and the supplier. Notwithstanding the not apply to those plates with specified minimum tensile absence of a signature, the organization submitting the EDI strengths of 95 ksi [655 MPa] or higher, unless such subcritical transmission is responsible for the content of the report. heating is accomplished at temperatures at least 75 °F [40 °C] below the minimum tempering temperature. The reports shall 20. Packaging, Marking, and Loading for Shipment state whether the plates only, the test coupons only, or both 20.1 Packaging, marking, and loading for shipment shall be plates and test coupons were heat treated. in accordance with those procedures recommended by Prac- tices A700. 19.4 If Charpy V-notch tests are specified, the test specimen size used shall be reported. 20.2 For USA Government Procurement—Marking for ship- ment of material for civil agencies shall be in accordance with 19.5 If so specified in the purchaser order, the manufacturer Fed. Std. No. 123. shall also furnish a certificate of compliance stating that the plates have been manufactured, inspected, and tested in accor- 21. Keywords dance with the requirements of the applicable product specifi- 21.1 general delivery requirement; pressure containing cation. For plates produced from coil, the processor shall parts; pressure vessel steels; steel plates; steel plates for furnish the required certification. pressure vessel applications SUPPLEMENTARY REQUIREMENTS The following standardized supplementary requirements are for use if desired by the purchaser. Those that are considered suitable for use with a product specification are listed in the product specification. Other tests may be performed by agreement between the manufacturer or processor and the purchaser. These supplementary requirements shall apply only if specified in the purchase order, in which event the specified tests shall be made by the manufacturer or processor before shipment of the plates. S1. Vacuum Treatment S3. Simulated Post-Weld Heat Treatment of Mechanical S1.1 The steel shall be made by a process that includes Test Coupons vacuum degassing while molten. Unless otherwise agreed upon S3.1 Prior to testing, the test coupons representing the plate with the purchaser, it is the responsibility of the manufacturer for acceptance purposes for mechanical properties shall be to select suitable process procedures. thermally treated to simulate a post-weld heat treatment below the critical temperature (Ac3), using the heat treatment param- S2. Product Analysis eters (such as temperature range, time, and cooling rates) S2.1 A product analysis shall be made of each plate as specified in the purchase order. For tests using specimens taken rolled. The specimens for analysis shall be taken adjacent to or from such heat treated test coupons, the test results shall meet from a broken tension test specimen. the requirements of the applicable product specification. Copyright ASTM International Provided by IHS under license with ASTM 11Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 S4. Additional Tension Test S8. Ultrasonic Examination in Accordance with A435/ A435M S4.1 Other Than Quenched-and-Tempered Plates—In addi- tion to the required single tension test, a second tension test S8.1 All plates shall be ultrasonically examined in accor- shall be made using a test specimen taken from a test coupon dance with the requirements of Specification A435/A435M. taken from a corner of the plate-as-rolled on the end opposite the single test specimen and in a direction parallel to the single S9. Magnetic Particle Examination test specimen. The results obtained using this second test S9.1 All plate edges shall be examined by magnetic par- specimen shall meet the requirements of the applicable product ticles in accordance with the procedures covered in Practice specification. E709. The acceptability of defects revealed by this examina- S4.2 Quenched-and-Tempered Plates 2 in. [50 mm] or tion shall be judged in accordance with the requirements for Greater in Thickness—In addition to the required tension tests, quality in 9.3. two additional test coupons shall be taken from the bottom corner of the plate. One shall be taken at the center of the plate S10. Charpy V-Notch Impact Transition Curve thickness and the other immediately beneath the surface. S10.1 Sufficient impact tests of the same specimen size shall Mandatory conformance of these additional tests with the be made from the plate test material to establish a transition specified properties shall be a matter of agreement between the curve. The test temperature range shall be wide enough to manufacturer and the purchaser. establish the upper and lower shelf energies, with sufficient testing at intermediate temperatures to permit plotting a rea- S5. Charpy V-Notch Impact Test sonable smooth curve. A plot of the data is not required. The manufacturer shall report the specimen orientation, test S5.1 Charpy V-notch impact tests shall be conducted in temperature, and absorbed energy for each specimen tested. accordance with 12.1. Lateral expansion and percent shear shall also be reported S5.2 The orientation of the test specimens, whether longi- when specified in the purchase order. The number of plates tudinal or transverse to the direction of rolling, shall be as tested and the specimen orientation shall be the same as in 12.1 specified in the purchase order. unless otherwise specified in the purchase order. S5.3 The test temperature and the required acceptance criteria, if other than those required in 12.1, shall be as S11. Ultrasonic Examination in Accordance with A577/ specified in the purchase order. A577M S5.4 The recorded results shall include test specimen S11.1 All plates shall be ultrasonically examined in accor- orientation, test specimen size, test temperature, absorbed dance with the requirements of Specification A577/A577M. energy values, and, if specified in the purchase order for other than Class VI plates, lateral expansion opposite the notch. The S12. Ultrasonic Examination in Accordance with A578/ percent shear fracture appearance shall also be recorded if A578M specified in the purchase order. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- S12.1 All plates shall be ultrasonically examined in accor- dance with the requirements of Specification A578/A578M. S6. Drop-Weight Test (for Plates 0.625 in. [16 mm] and The acceptance level shall be as specified in the purchase order. Over in Thickness) S6.1 Drop-weight tests shall be made in accordance with the S13. NDT Temperature Determination requirements of Test Method E208. The specimens shall S13.1 The NDT temperature shall be established in accor- represent the plates in the final condition of heat treatment. dance with Method E208 using coupons from a single plate. Agreement shall be reached between the purchaser and the The number of plates to be so tested shall be subject to manufacturer or processor as to the number of plates to be agreement between the purchaser and the manufacturer or tested and whether a maximum NDT temperature is mandatory processor. or if the test results are for information only. S15. Reduction of Area Measurement S7. High-Temperature Tension Tests S15.1 A reduction of area measurement shall be taken while S7.1 A short-time elevated temperature tension test shall be making the required tension test. Reduction of area shall be made to represent each plate or each heat of steel as indicated determined only on the 0.500-in. [12.5–mm] round specimen by the purchaser. The specimens for testing shall be obtained as as shown in Fig. 5 of Test Methods and Definitions A370. The required for the room temperature tension tests specified in the minimum acceptance limit shall be 40 %. body of this general requirements specification. The high- temperature tests shall be made in accordance with the require- S16. Thermal Stress Relief of Mechanical Test Coupons ments of Practice E21. Mandatory conformance of such S16.1 Test coupons representing the plates shall be ther- additional tests with the specified properties shall be a matter mally stress relieved by gradually and uniformly heating them for agreement between the manufacturer or processor and the to a temperature between 1100 and 1200°F [595 and 650°C], or purchaser. a temperature range otherwise agreed upon between the Copyright ASTM International Provided by IHS under license with ASTM 12 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 manufacturer or processor and the purchaser, holding at tem- S21. Restricted Limits on Elements perature for at least 1 h/in. [2.4 min/mm] of thickness and For each heat, based upon the heat analysis, the content shall cooling in still air to a temperature not exceeding 600 °F not exceed 0.35 % for copper, 0.25 % for nickel, 0.25 % for [315°C]. chromium, 0.08 % for molybdenum, or 0.70 % for the sum of those four elements. S17. Vacuum Carbon-Deoxidized Steel S22. Through-Thickness Tension Tests S17.1 Material shall be vacuum carbon-deoxidized, in which case the silicon content at the time of vacuum deoxi- S22.1 Through-thickness tension tests shall be made in dizing shall be 0.12 % maximum, and the content of deoxidiz- accordance with the requirements of Specification A770/ ers such as aluminum, zirconium, and titanium should be kept A770M. (See Ordering Information in Specification A770/ low enough to allow deoxidation by carbon. The test report A770M for the additional information that may be needed.) shall indicate that the steel was vacuum carbon-deoxidized. S24. Strain Age Test The minimum heat analysis and product analysis requirements S24.1 Test coupons shall be given a strain age treatment for silicon do not apply to vacuum carbon-deoxidized steel. designated by the purchaser. Charpy V-notch tests shall be S19. Restricted Chemical Requirements conducted on the strain aged specimens. Heat treatment, strain aging, test temperature, and acceptance criteria shall be as S19.1 Restricted heat analysis and product analysis limits agreed upon between the manufacturer or processor and the are applicable, as specified in the purchase order. purchaser. S20. Maximum Carbon Equivalent for Weldability S25. Weldability S20.1 Plates shall be supplied with a specific maximum S25.1 Weldability tests shall carbon equivalent value. This value shall be based upon the be conducted. The type of test and the acceptance criteria heat analysis. The required chemical analysis as well as the shall be as agreed upon between the manufacturer or processor carbon equivalent shall be reported. and the purchaser. S20.2 The carbon equivalent shall be calculated using the S26. Low-Sulfur Steels following formula: S26.1 The steel shall be made to 0.010 % sulfur maximum. CE 5 C1Mn/61 ~ Cr1Mo1V ! /51 ~ Ni1Cu! /15. Lower sulfur levels and sulfide shape control practices can be S20.3 The maximum value of the carbon equivalent for specified by agreement between the manufacturer or processor carbon steels (including C-Mn, C-Mn-Si, C-Mn-Si-Al steels), and the purchaser. are given in Table S20.1. S27. Restrictive Plate Flatness S27.1 Carbon steel plates, as-rolled or normalized, shall conform to the permissible restrictive variations from flatness TABLE S20.1 Maximum Carbon Equivalent for Weldability given in Table S27.1 or Table S27.2. Specified Minimum UTS Maximum Carbon Equivalent Value S27.2 High-strength low-alloy steel plates, as-rolled or ksi [MPa] Thickness up to 2 in. Thickness over 2 in. normalized, shall conform to the permissible restrictive varia- [50 mm] incl [50 mm] 60 # UTS < 70 0.45 0.46 tions from flatness given in Table S27.3 or Table S27.4. [415 # UTS < 485] 70 # UTS < 80 0.47 0.48A S28. Heat Treatment in the Working Zone of a Surveyed [485 # UTS < 550] Furnace UTS $ 80 0.48A ,B ... [UTS $ 550] S28.1 Plates shall be heat treated in the working zone of a A If simulated PWHT of the test coupons is specified (S3), the maximum carbon furnace that has been surveyed in accordance with Test Method equivalent value may be increased up to 0.50 upon agreement between purchaser A991/A991M, provided that such working zone was estab- and supplier. lished using a variation of 25°F [15°C] or less from the furnace B Applicable to quenched-and-tempered material; for other conditions, maximum carbon equivalent shall be by agreement between purchaser and supplier. set point. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- S28.2 The test report shall indicate that S28 applies. Copyright ASTM International Provided by IHS under license with ASTM 13 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE S27.1 Permissible Variations from Flatness for Carbon Steel Plates As-Rolled or Normalized Ordered to Restrictive Flatness NOTE 1—Flatness Variations for Length—The longer dimension specified is considered the length, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2—Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation in flatness along the length and across the width shall not exceed 1⁄4 in. in each direction. When the longer dimension is from 36 to 72 in., inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 1⁄4 in. NOTE 4—The variations given in this table apply to plates that have a minimum specified tensile strength not over 60 ksi or comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the permissible variations are 11⁄2 times the amounts shown in the table below. NOTE 5—This table and these notes cover the flatness variations of circular and sketch plates based on the maximum dimensions of those plates. NOTE 6—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- NOTE 7—A “Z” indicates that there is no published restricted value for the size. NOTE 8—Plates shall be in a horizontal position on a flat surface when flatness is measured. Specified Permissible Variations from a Flat Surface for Specified Widths, in. Thickness, in. 48 to 60, excl 60 to 72, excl 72 to 84, excl 84 to 96, excl 96 to 108, excl 108 to 120, incl To 1⁄4 , excl ⁄ 34 ⁄ 15 16 Z Z Z Z 1⁄4 to 3⁄8, excl ⁄ 9 16 3 ⁄4 7 ⁄8 15⁄16 1-1⁄16 1-1⁄8 3⁄8 to 1⁄2, excl 5⁄16 5⁄16 3 ⁄8 7⁄16 1 ⁄2 9⁄16 1⁄2 to 3⁄4, excl 5⁄16 5⁄16 5⁄16 3 ⁄8 1 ⁄2 1 ⁄2 3⁄4 to 1, excl 5⁄16 5⁄16 5⁄16 5⁄16 3 ⁄8 7⁄16 1 to 2, incl 1⁄ 4 5⁄16 5⁄16 5⁄16 5⁄16 3 ⁄8 TABLE S27.2 Permissible Variations from Flatness for Carbon Steel Plates As-Rolled or Normalized Ordered to Restrictive Flatness NOTE 1—Flatness Variations for Length—The longer dimension specified is considered the length, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 3700 mm in length, or in any 3700 mm of longer plates. NOTE 2—Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation in flatness along the length and across the width shall not exceed 6 mm in each direction. When the longer dimension is from 900 to 1800 mm, inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 6 mm. NOTE 4—The variations given in this table apply to plates that have a minimum specified tensile strength not over 415 MPa or comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the permissible variations are 11⁄2 times the amounts shown in the table below. NOTE 5—This table and these notes cover the flatness variations of circular and sketch plates based on the maximum dimensions of those plates. NOTE 6—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 7—A “Z” indicates that there is no published restricted value for the size. NOTE 8—Plates shall be in horizontal position on a flat surface when flatness is measured. Specified Permissible Variations from a Flat Surface for Specified Widths, mm Thickness, mm 1200 to 1500, excl 1500 to 1800, excl 1800 to 2100, excl 2100 to 2400, excl 2400 to 2700, excl 2700 to 3000, incl To 6, excl 18 24 Z Z Z Z 6 to 10, excl 15 18 22 24 27 29 10 to 12, excl 8 8 10 11 13 15 12 to 20, excl 7 8 8 10 13 13 20 to 25, excl 7 8 8 8 10 11 25 to 50, excl 7 7 7 8 8 8 Copyright ASTM International Provided by IHS under license with ASTM 14 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE S27.3 Permissible Variations from Flatness for High-Strength Low-Alloy Steel Plates As-Rolled or Normalized Ordered to Restrictive Flatness NOTE 1—Flatness Variations for Length—The longer dimension specified is considered the length, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2—Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation in flatness along the length and across the width shall not exceed 3⁄8 in. in each direction. When the larger dimension is from 36 to 72 in., inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width but in no case less than 3⁄8 in. NOTE 4—This table and these notes cover the flatness variations of circular and sketch plates based on the maximum dimensions of those plates. NOTE 5—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 6—A “Z” indicates that there is no published restricted value for the size. NOTE 7—Plates shall be in horizontal position on a flat surface when flatness is measured. Specified Permissible Variations from a Flat Surface for Specified Widths, in. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Thickness, in. 48 to 60, excl 60 to 72, excl 72 to 84, excl 84 to 96, excl 96 to 108, excl 108 to 120, incl To 1⁄4 , excl 11⁄16 17⁄16 Z Z Z Z 1⁄4 to 3⁄8, excl 7⁄ 8 11⁄16 15⁄16 17⁄16 1 1 ⁄2 111⁄16 3⁄8 to 1⁄2, excl 1⁄ 2 1 ⁄2 9⁄16 11⁄16 3 ⁄4 13⁄16 1⁄2 to 3⁄4, excl 7⁄16 7⁄16 1 ⁄2 9⁄16 5 ⁄8 11⁄16 3⁄4 to 1, excl 7⁄16 7⁄16 1 ⁄2 1 ⁄2 9⁄16 11⁄16 1 to 2, incl 3⁄ 8 7⁄16 7⁄16 1 ⁄2 1 ⁄2 1 ⁄2 TABLE S27.4 Permissible Variations from Flatness for High-Strength Low-Alloy Steel Plates As-Rolled or Normalized Ordered to Restrictive Flatness NOTE 1—Flatness Variations for Length—The longer dimension specified is considered the length, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 3700 mm in length, or in any 3700 mm of longer plates. NOTE 2—Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation in flatness along the length and across the width shall not exceed 10 mm in each direction. When the larger dimension is from 900 to 1800 mm, inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 10 mm. NOTE 4—This table and these notes cover the variations for flatness of circular and sketch plates based on the maximum dimensions of those plates. NOTE 5—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 6—A “Z” indicates that there is no published restricted value for the size. NOTE 7—Plates shall in a horizontal position on a flat surface when flatness is measured. Specified Permissible Variations from a Flat Surface for Specified Widths, mm Thickness, mm 1200 to 1500, excl 1500 to 1800, excl 1800 to 2100, excl 2100 to 2400, excl 2400 to 2700, excl 2700 to 3000, incl To 6, excl 27 36 Z Z Z Z 6 to 10, excl 22 27 33 36 39 43 10 to 12, excl 12 12 15 17 19 21 12 to 20, excl 11 11 13 15 16 18 20 to 25, excl 11 11 12 13 15 17 25 to 50, excl 10 11 11 12 13 13 Copyright ASTM International Provided by IHS under license with ASTM 15 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 ANNEXES (Mandatory Information) A1. PERMISSIBLE VARIATIONS IN DIMENSIONS, ETC.—INCH-POUND UNITS A1.1 Listed below are permissible variations in dimensions, and notch toughness information, expressed in inch-pound units of measurement. TABLE A1.1 Permissible Variations in Thickness for Rectangular Plates NOTE 1—Permissible variation under specified thickness, 0.01 in. NOTE 2—Thickness to be measured at 3⁄8 to 3⁄4 in. from the longitudinal edge. NOTE 3—For thickness measured at any location other than that specified in Note 2, the permissible maximum over-tolerance shall be increased by 75 %, rounded to the nearest 0.01 in. Specified Tolerance Over Specified Thickness for Widths Given, in. Thickness, 48 Over 48 60 to 72 to 84 to 96 to 108 to 120 to 132 to 144 to 168 to 182 in. and to 60, 72, 84, 96, 108, 120, 132, 144, 168, 182, and under excl excl excl excl excl excl excl excl excl excl over To 1⁄4 , excl 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 ... ... ... ⁄ to 5⁄16, excl 14 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 ... ... ... 5⁄16 to 3⁄8, excl 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.05 ... ... 3⁄8 to 7⁄16, excl 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.05 0.06 0.06 ... 7⁄16 to 1⁄2, excl 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.05 0.06 0.06 ... 1⁄2 to 5⁄8, excl 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.05 0.06 0.07 ... 5⁄8 to 3⁄4, excl 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.06 0.07 0.07 3⁄4 to 1, excl 0.03 0.03 0.03 0.03 0.04 0.04 0.05 0.05 0.06 0.07 0.08 0.09 1 to 2, excl 0.06 0.06 0.06 0.06 0.06 0.07 0.08 0.10 0.10 0.11 0.13 0.16 2 to 3, excl 0.09 0.09 0.09 0.10 0.10 0.11 0.12 0.13 0.14 0.15 0.15 ... 3 to 4, excl 0.11 0.11 0.11 0.11 0.11 0.13 0.14 0.14 0.14 0.15 0.17 ... 4 to 6, excl 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.20 0.20 ... 6 to 10, excl 0.23 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.27 0.28 ... 10 to 12, excl 0.29 0.29 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.35 ... 12 to 15, incl 0.29 0.29 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 ... --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 16 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.2 Permissible Variations in Width and Length for Sheared Plates 11⁄2 in. and Under in Thickness; Length Only for Universal Mill Plates 21⁄2 in. and Under in Thickness Specified Dimensions, in. Permissible Variations over Specified Width and LengthA for Thicknesses Given in inches, in. To 3⁄8,excl ⁄ to 5⁄8 , excl 38 ⁄ to 1, excl 58 1 to 2, inclB Length Width Width Length Width Length Width Length Width Length To 120, excl over 8 to 60, excl 38 ⁄ ⁄ 12 ⁄ 7 16 58⁄ 12⁄ ⁄ 34 58⁄ 1 60 to 84, excl ⁄ 7 16 ⁄ 58 12⁄ ⁄ 11 16 58⁄ ⁄ 78 34⁄ 1 --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- 84 to 108, excl ⁄ 12 3⁄4 5 ⁄8 7 ⁄8 3 ⁄4 1 1 11⁄8 108 and over ⁄ 58 7⁄8 3 ⁄4 1 7⁄ 8 1 1 ⁄8 1 1⁄8 1 1⁄4 120 to 240, excl over 8 to 60, excl 3⁄ 8 3⁄4 1 ⁄2 7 ⁄8 5 ⁄8 1 3⁄4 1 1⁄8 60 to 84, excl 1⁄ 2 3⁄4 5 ⁄8 7 ⁄8 3 ⁄4 1 7⁄8 1 1⁄4 84 to 108, excl 9⁄16 7 ⁄8 11⁄16 15⁄16 13⁄16 1 1 ⁄8 1 13⁄8 108 and over 5⁄ 8 1 3⁄ 4 1 1 ⁄8 7 ⁄8 1 1 ⁄4 1 1⁄8 1 3⁄8 240 to 360, excl over 8 to 60, excl 3⁄ 8 1 1⁄ 2 1 1 ⁄8 5 ⁄8 1 1 ⁄4 3 ⁄4 1 1⁄2 60 to 84, excl 1⁄ 2 1 5⁄ 8 1 1 ⁄8 3 ⁄4 1 1 ⁄4 7 ⁄8 1 1⁄2 84 to 108, excl 9⁄16 1 11⁄16 1 1 ⁄8 7 ⁄8 1 3 ⁄8 1 11⁄2 108 and over 11⁄16 1 1⁄ 8 7 ⁄8 1 1 ⁄4 1 1 3 ⁄8 1 1⁄4 1 3⁄4 360 to 480, excl over 8 to 60, excl 7⁄16 1 1⁄ 8 1 ⁄2 1 1 ⁄4 5 ⁄8 1 3 ⁄8 3 ⁄4 1 5⁄8 60 to 84, excl 1⁄ 2 1 1⁄ 4 5 ⁄8 1 3 ⁄8 3 ⁄4 1 1 ⁄2 7 ⁄8 1 5⁄8 84 to 108, excl 9⁄16 1 1⁄ 4 3 ⁄4 1 3 ⁄8 7 ⁄8 1 1 ⁄2 1 17⁄8 108 and over 3⁄ 4 1 3⁄ 8 7 ⁄8 1 1 ⁄2 1 1 5 ⁄8 1 1⁄4 1 7⁄8 480 to 600, excl over 8 to 60, excl 7⁄16 1 1⁄ 4 1 ⁄2 1 1 ⁄2 5 ⁄8 1 5 ⁄8 3 ⁄4 1 7⁄8 60 to 84, excl 1⁄ 2 1 3⁄ 8 5 ⁄8 1 1 ⁄2 3 ⁄4 1 5 ⁄8 7 ⁄8 1 7⁄8 84 to 108, excl 5⁄ 8 1 3⁄ 8 3 ⁄4 1 1 ⁄2 7 ⁄8 1 5 ⁄8 1 17⁄8 108 and over 3⁄ 4 1 1⁄ 2 7 ⁄8 1 5 ⁄8 1 1 3 ⁄4 1 1⁄4 1 7⁄8 600 to 720, excl over 8 to 60, excl 1⁄ 2 1 3⁄ 4 5 ⁄8 1 7 ⁄8 3 ⁄4 1 7 ⁄8 7 ⁄8 2 1⁄4 60 to 84, excl 5⁄ 8 1 3⁄ 4 3 ⁄4 1 7 ⁄8 7 ⁄8 1 7 ⁄8 1 21⁄4 84 to 108, excl 5⁄ 8 1 3⁄ 4 3 ⁄4 1 7 ⁄8 7 ⁄8 1 7 ⁄8 1 1⁄8 2 1⁄4 108 and over 7⁄ 8 1 3⁄ 4 1 2 11⁄8 2 1 ⁄4 1 1⁄4 2 1⁄2 720 and over over 8 to 60, excl 9⁄16 2 3⁄ 4 2 1 ⁄8 7 ⁄8 2 1 ⁄4 1 23⁄4 60 to 84, excl 3⁄ 4 2 7⁄ 8 2 1 ⁄8 1 2 1 ⁄4 1 1⁄8 2 3⁄4 84 to 108, excl 3⁄ 4 2 7⁄ 8 2 1 ⁄8 1 2 1 ⁄4 1 1⁄4 2 3⁄4 108 and over 1 2 11⁄8 2 3 ⁄8 1 1 ⁄4 2 1 ⁄2 1 3⁄8 3 A Permissible variation under specified width and length: 1⁄4 in. By agreement, these permitted variations may be taken all over, in which case the sum of these permitted variations applies. B Permissible variations in length apply also to Universal Mill plates up to 12 in. in width for thicknesses over 2 to 21⁄2 in., incl, except for alloy steel up to 2 in. thick. TABLE A1.3 Permissible Variations in Rolled Width for Universal Mill Carbon Steel, High-Strength Low-Alloy Steel, and Alloy-Steel Plates 15 in. and under in Thickness NOTE 1—Permissible variation under specified width shall be 1⁄8 in. Variations Over Specified Width for Thicknesses Given, in. Specified Width, in. Over 2 Over 10 To 3⁄8 , ⁄ to 5⁄8, 5⁄8 to 1, 1 to 2, 38 to 10, to 15, excl excl excl incl incl incl Over 8 to 20, excl 18 ⁄ ⁄ 18 ⁄ 3 16 14⁄ 38 ⁄ 12 ⁄ 20 to 36, excl ⁄ 3 16 ⁄ 14 ⁄ 5 16 38⁄ ⁄ 7 16 ⁄ 9 16 36 and over 5⁄16 3⁄8 7⁄16 1 ⁄2 9⁄16 58 ⁄ Copyright ASTM International Provided by IHS under license with ASTM 17 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.4 Permissible Variations in Diameter for Sheared Circular Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Plates 1 in. and under in Thickness NOTE 1—No permissible variations under specified diameter. Permissible Variations Over Specified Diameter for Thicknesses Given, in. Specified Diameter, in. ⁄ to 1, 58 To 3⁄8 , 38⁄ to 5⁄8, incl excl excl To 32, excl 14 ⁄ 38 ⁄ 12 ⁄ 32 to 84, excl ⁄ 5 16 ⁄ 7 16 ⁄ 9 16 84 to 108, excl 38 ⁄ 12 ⁄ 58 ⁄ 108 to 130, incl ⁄ 7 16 ⁄ 9 16 11 16 ⁄ TABLE A1.5 Permissible Variations in Width and Length for Rectangular Carbon Steel and High-Strength Low-Alloy Steel Plates when Gas Cutting is Specified or Required NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2—Plates with universal rolled edges will be gas cut to length only. Variations Over for All Specified Specified Thickness, in. Widths or Lengths, in. To 2, excl ⁄ 12 2 to 4, excl ⁄ 58 4 to 6, excl 3⁄ 4 6 to 8, excl 7⁄ 8 8 to 15, incl 1 TABLE A1.6 Permissible Variations in Diameter for Gas-Cut --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Circular Carbon Steel and High-Strength Low-Alloy Steel Plates NOTE 1—No permissible variations under specified diameter Variations Over Specified Diameter for Thicknesses Given, in. Specified Diameter, in. To 1, 1 to 2, 2 to 4, 4 to 6, 6 to 8, 8 to 15, excl excl excl excl excl incl To 32, excl 38⁄ 38 ⁄ 12⁄ 12⁄ ⁄ 58 ⁄ 34 32 to 84, excl 38⁄ 12 ⁄ 12⁄ 58⁄ ⁄ 34 ⁄ 78 84 to 108, excl 1 ⁄2 ⁄ 9 16 5 ⁄8 3⁄ 4 7 ⁄8 1 108 to 130, excl 1 ⁄2 ⁄ 9 16 11⁄16 7 ⁄8 1 11⁄ 8 130 and over 5 ⁄8 34 ⁄ 7⁄ 8 1 1 1⁄ 8 1 1⁄ 4 TABLE A1.7 Permissible Camber for Carbon Steel Sheared or Gas-Cut Rectangular Plates all Thicknesses NOTE 1—Camber, as it relates to plates, is the horizontal edge curvature in the length, measured over the entire length of the plate in the flat position. Maximum permissible camber, in. = 1⁄8 in. × (number of feet of length/5) Copyright ASTM International Provided by IHS under license with ASTM 18 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.8 Permissible Camber for Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Universal Mill Plates and High- Strength Low-Alloy Steel and Alloy Steel Sheared or Gas-Cut Rectangular Plates Dimension, in. Camber for Thickness Thickness Width and Widths Given To 2, incl all ⁄ in. × (number of feet of length/5) 18 Over 2 to 15, incl to 30, incl ⁄ in. × (number of feet of 3 16 --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- length/5) Over 2 to 15, incl over 30 1⁄4 in. × (number of feet of length/5) TABLE A1.9 Permissible Variations from Flatness for Carbon Steel Plates NOTE 1—Flatness Variations for Length—The longer dimension specified is considered the length, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2—Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation in flatness along the length and across the width shall not exceed 1⁄4 in. in each direction. When the longer dimension is from 36 to 72 in., inclusive, the flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 1⁄4 in. NOTE 4—The tolerances given in this table apply to plates that have a minimum specified tensile strength not over 60 ksi or comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the limits given in the table are increased to 11⁄2 times the amounts in the above table. NOTE 5—This table and notes cover the flatness tolerances of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 6—Plates shall be in a horizontal position on a flat surface when flatness is measured. Variations from a Flat Surface for Specified Widths, in. Specified Over 8 Thickness, in. 36 to 48, 48 to 60, 60 to 72, 72 to 84, 84 to 96, 96 to 108, 108 to 120, 120 to 144, 144 to 168, 168 and to 36, excl excl excl excl excl excl excl excl excl over excl To 1⁄4 , excl ⁄ 9 16 34 ⁄ ⁄ 15 16 1 1 ⁄4 13⁄8 1 1 ⁄2 1 5 ⁄8 1 3 ⁄4 1 7 ⁄8 ... ... 1⁄4 to 3⁄8, excl ⁄ 12 58 ⁄ 34⁄ ⁄ 15 16 11⁄8 1 1 ⁄4 1 3 ⁄8 1 1 ⁄2 1 5 ⁄8 ... ... 3⁄8 to 1⁄2, excl 1 ⁄2 ⁄ 9 16 5⁄ 8 5⁄ 8 3 ⁄4 7⁄8 1 1 1 ⁄8 1 1 ⁄4 1 7⁄ 8 2 1⁄8 1⁄2 to 3⁄4, excl 7⁄16 ⁄ 12 9⁄16 5 ⁄8 5 ⁄8 3⁄4 1 1 1 1 ⁄8 1 1⁄ 2 2 3⁄4 to 1, excl 7⁄16 ⁄ 12 9⁄16 5 ⁄8 5 ⁄8 5⁄8 3⁄4 7 ⁄8 1 1 3⁄ 8 1 3⁄4 1 to 2, excl 3 ⁄8 1 ⁄2 1 ⁄2 9⁄16 9⁄16 5 ⁄8 5⁄8 5 ⁄8 11⁄16 1 1⁄ 8 1 1⁄2 2 to 4 excl 5⁄16 3 ⁄8 7⁄16 1 ⁄2 1 ⁄2 1⁄2 1⁄2 9⁄16 5 ⁄8 7 ⁄8 1 1⁄8 4 to 6, excl 3 ⁄8 7⁄16 1⁄ 2 1⁄ 2 9⁄16 9⁄16 5 ⁄8 3 ⁄4 7 ⁄8 7 ⁄8 1 6 to 8, excl 7⁄16 1 ⁄2 1 ⁄2 5⁄ 8 11⁄16 3⁄4 7⁄8 7 ⁄8 1 1 1 8 to 10 excl 1 ⁄2 1 ⁄2 5 ⁄8 11⁄16 3⁄ 4 13⁄16 7 ⁄8 15⁄16 1 1 1 10 to 12, excl 1 ⁄2 5 ⁄8 3 ⁄4 13⁄16 7 ⁄8 15⁄16 1 1 1 1 1 12 to 15, incl 5 ⁄8 3 ⁄4 13⁄16 7 ⁄8 15⁄16 1 1 1 1 1 ... TABLE A1.10 Permissible Variations in Width and Length for Rectangular Alloy Steel Plates when Gas Cutting is Specified or Required NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2— Plates with universal rolled edges will be gas cut to length only. Specified Thickness, in. Variations Over for All Specified Widths and Lengths, in. To 2, excl ⁄ 34 2 to 4, excl 1 4 to 6, excl 11⁄8 6 to 8, excl 15⁄16 8 to 15, incl 11⁄2 Copyright ASTM International Provided by IHS under license with ASTM 19 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.11 Permissible Variations in Diameter for Gas-Cut Circular Alloy Steel Plates NOTE 1—No permissible variations under specified diameter. Variations Over Specified Diameter for Thicknesses Given, in. Specified To 1, 1 to 2, 2 to 4, 4 to 6 to 8 to Diameter, in. excl excl excl 6, 8, 15 excl excl incl To 32, excl ⁄ 12 34⁄ ⁄ 34 ⁄ 34 1 1 32 to 84, excl ⁄ 12 58⁄ ⁄ 78 1 11⁄ 8 1 1⁄ 4 84 to 108, excl 5⁄ 8 3 ⁄4 1 11⁄ 8 1 1⁄ 4 1 3⁄ 8 108 to 130, incl 7⁄ 8 1 1 1⁄ 8 1 1⁄ 4 1 3⁄ 8 1 1⁄ 2 TABLE A1.12 Permissible Variations from Flatness for High-Strength Low-Alloy Steel and Alloy Steel Plates NOTE 1—Flatness Tolerances for Length—The longer dimension specified is considered the length and variations from a flat surface along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2—Flatness Tolerances for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation shall not exceed 3⁄8 in. When the larger dimension is from 36 to 72 in., incl, the variation shall not exceed 75 % of the tabular amount for the specified width. NOTE 4—This table and notes cover the tolerances for flatness of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 5—Plates shall be in a horizontal position on a flat surface when flatness is measured. Variations from a Flat Surface for Specified Widths, in. Specified Over 8 Thickness, in. 36 to 48 to 60 to 72 to 84 to 96 to 108 to 120 to 144 to 168 and to 36, 48, excl 60, excl 72, excl 84, excl 96, excl 108, excl 120, excl 144, excl 168, excl Over excl To 1⁄4 , excl ⁄ 13 16 1 1⁄ 8 1 3⁄ 8 1 7⁄ 8 2 2 1 ⁄4 2 3 ⁄8 2 5⁄ 8 2 3⁄ 4 ... ... 1⁄4 to 3⁄8, excl ⁄ 34 ⁄ 15 16 1 1⁄ 8 1 3⁄ 8 1 3⁄ 4 1 7 ⁄8 2 2 1⁄ 4 2 3⁄ 8 ... ... 3⁄8 to 1⁄2, excl 3⁄ 4 7⁄8 15⁄16 15⁄16 1 1⁄ 8 15⁄16 1 1 ⁄2 1 5⁄ 8 1 7⁄ 8 2 3⁄ 4 3 1⁄ 8 1⁄2 to 3⁄4, excl 5⁄ 8 3⁄4 13⁄16 7⁄ 8 1 1 1 ⁄8 1 1 ⁄4 1 3⁄ 8 1 5⁄ 8 2 1⁄ 4 3 3⁄4 to 1, excl 5⁄ 8 3⁄4 7⁄8 7⁄8 15⁄16 1 1 1 ⁄8 15⁄16 1 1⁄ 2 2 2 5⁄ 8 1 to 2, excl 9⁄16 5 ⁄8 3⁄4 13⁄16 7 ⁄8 15⁄16 1 1 1 1 5⁄ 8 2 1 ⁄4 2 to 4, excl 1⁄ 2 9⁄16 11⁄16 3 ⁄4 3⁄4 3⁄4 3⁄4 7⁄8 1 1 1⁄ 4 1 5⁄ 8 4 to 6, excl 9⁄16 11⁄16 3 ⁄4 3⁄4 7⁄8 7⁄8 15⁄16 1 1⁄ 8 1 1⁄ 4 1 1⁄ 4 1 1⁄ 2 6 to 8, excl 5⁄ 8 3⁄4 3⁄4 15⁄16 1 1 1 ⁄8 1 1 ⁄4 15⁄16 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 8 to 10, excl 3⁄ 4 13⁄16 15⁄16 1 1 1⁄ 8 1 1 ⁄4 15⁄16 1 3⁄ 8 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 10 to 12, excl 3⁄ 4 15⁄16 1 1⁄ 8 1 1⁄ 4 15⁄16 1 3 ⁄8 1 1 ⁄2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 12 to 15, incl 7⁄ 8 1 13⁄16 15⁄16 1 3⁄ 8 1 1 ⁄2 1 1 ⁄2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 20 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.13 Waviness Tolerances for Rectangular Plates, Universal Mill Plates, Circular Plates, and Sketch Plates NOTE 1—Waviness denotes the deviation of the top or bottom surface from a horizontal line, when the plate is resting on a flat surface, as measured in an increment of less than 12 ft of length. The waviness tolerance is a function of the flatness tolerance as obtained from Tables A1.9 and A1.12. Flatness Tolerance When Number of Waves in 12 ft is: from Tables A1.9 and 1 2 3 4 5 6 7 A1.12 ⁄ 5 16 ⁄ 5 16 ⁄ 14 ⁄ 3 16 18 ⁄ 18⁄ ⁄ 1 16 ⁄ 1 16 ⁄ 38 38 ⁄ ⁄5 16 ⁄ 3 16 ⁄ 3 16 18 ⁄ ⁄ 1 16 ⁄ 1 16 7⁄16 ⁄ 7 16 5⁄16 14⁄ 3⁄16 1 ⁄8 18⁄ 1⁄16 1⁄2 12 ⁄ 3 ⁄8 ⁄ 5 16 3⁄16 3⁄16 18⁄ 1⁄16 9⁄16 ⁄ 9 16 7⁄16 5⁄16 1 ⁄4 3⁄16 1 ⁄8 1 ⁄8 5⁄8 58⁄ 1 ⁄2 3 ⁄8 1 ⁄4 3⁄16 1 ⁄8 1 ⁄8 11⁄16 ⁄ 11 16 1 ⁄2 3 ⁄8 5⁄16 3⁄16 3⁄16 1 ⁄8 3⁄4 3 ⁄4 9⁄16 7⁄16 5⁄16 1 ⁄4 3⁄16 1 ⁄8 13⁄16 13⁄16 5 ⁄8 7⁄16 5⁄16 1 ⁄4 3⁄16 1 ⁄8 7⁄8 7 ⁄8 11⁄16 1 ⁄2 3 ⁄8 1 ⁄4 3⁄16 1 ⁄8 15⁄16 15⁄16 11⁄16 1 ⁄2 3 ⁄8 5⁄16 1 ⁄4 3⁄16 1 1 3 ⁄4 9⁄16 7⁄16 5⁄16 1 ⁄4 3⁄16 1 1⁄ 8 1 1⁄ 8 7 ⁄8 5 ⁄8 1 ⁄2 3 ⁄8 1 ⁄4 3⁄16 1 1⁄ 4 1 1⁄ 4 15⁄16 11⁄16 1 ⁄2 3 ⁄8 5⁄16 1 ⁄4 1 3⁄ 8 1 3⁄ 8 11⁄16 3 ⁄4 9⁄16 7⁄16 5⁄16 1 ⁄4 --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- 1 1⁄ 2 1 1⁄ 2 1 1⁄8 7 ⁄8 5 ⁄8 1 ⁄2 3 ⁄8 1 ⁄4 1 5⁄ 8 1 5⁄ 8 1 1⁄4 15⁄16 11⁄16 1 ⁄2 3 ⁄8 5⁄16 1 3⁄ 4 1 3⁄ 4 15⁄16 1 3⁄ 4 9⁄16 7⁄16 5⁄16 1 7⁄ 8 1 7⁄ 8 17⁄16 11⁄16 13⁄16 9⁄16 7⁄16 5⁄16 2 2 11⁄2 1 1⁄ 8 7 ⁄8 5 ⁄8 1 ⁄2 3 ⁄8 2 1⁄ 8 2 1⁄ 8 1 5⁄8 13⁄16 7⁄8 11⁄16 1 ⁄2 3 ⁄8 2 1⁄ 4 2 1⁄ 4 111⁄16 1 1⁄ 4 15⁄16 11⁄16 9⁄16 3 ⁄8 2 3⁄ 8 2 3⁄ 8 113⁄16 1 5⁄16 1 3⁄ 4 9⁄16 7⁄16 2 1⁄ 2 2 1⁄ 2 1 7⁄8 17⁄16 11⁄16 13⁄16 9⁄16 7⁄16 2 5⁄ 8 2 5⁄ 8 2 1 1⁄ 2 1 1⁄ 8 13⁄16 5 ⁄8 7⁄16 2 3⁄ 4 2 3⁄ 4 21⁄16 19⁄16 1 1⁄ 8 7 ⁄8 5 ⁄8 1 ⁄2 2 7⁄ 8 2 7⁄ 8 2 ⁄16 3 1 5⁄ 8 13⁄16 15⁄16 11⁄16 1 ⁄2 3 3 21⁄4 111⁄16 1 1⁄ 4 15⁄16 11⁄16 9⁄16 3 1⁄ 8 3 1⁄ 8 2 3⁄8 1 3⁄ 4 15⁄16 1 3⁄4 9⁄16 TABLE A1.14 Visible Edge Indications Extending Approximately Parallel to Rolled Surfaces Acceptable Remove by Grinding Acceptable on Edges Plate Specification Cut in Fabrication and Thickness Depth LengthA Depth LengthA Depth LengthA Column 1 2 3 4 5 6 Other than killed,B to 2 in., incl 1⁄8 in. max any over 1⁄8 in. to 1⁄4 in., incl over 1 in. 1⁄4 in. max any Killed,C to 6 in., incl 1⁄16 in. max any over 1⁄16 in. to 1⁄8 in., incl over 1 in. 1⁄8 in. max any Killed,C over 6 in. 1⁄8 in. max any over 1⁄8 in. to 1⁄2 in., incl over 1 in. 1⁄2 in. max any A Laminar-type discontinuities 1 in. and less in length are acceptable and do not require exploration. B Specifications: A285; A433; A442 in thicknesses to 1 in., incl; or A455. C The specification in 1.1 of this standard, other than those listed in the above Footnote B. Copyright ASTM International Provided by IHS under license with ASTM 21 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.15 Generally Available Grade-Thickness-Minimum Test Temperature Combinations Meeting Charpy V-Notch Requirements Indicated (Normalized or Quenched and Tempered Condition) NOTE 1—The minimum temperatures listed are for longitudinal tests. For transverse tests, the available minimum temperature may be somewhat higher. Test Temperature, °F for Plate Thicknesses (Unless Acceptance Criteria Charpy V-Notch Otherwise Agreed Upon) Energy Absorption Specification and GradeA MinimumAverage Over 1 in. to 2 in., Over 2 in. to 3 in., Over 3 in. to 5 in., Minimum For 1 in. and Under For 3 incl. incl. incl. ClassB 1 SpecimenC SpecimensC ft·lbf ft·lbf I 10 7 A285 Grade A +40 +60 ... ... A285 Grade B +50 +70 ... ... A285 Grade C +60 +80 ... ... II 13 10 A455 +25 ... ... ... III 13 10 A203 Grade A −90 −90 −75 ... A203 Grade D −150 −150 −125 ... A442 Grade 55 (11⁄2 in. max thickness ... −20 ... ... A442 Grade 60 (11⁄2 in. max thickness) ... −15 ... ... A516 Grade 55 −60 −60 −50 −50 A516 Grade 60 −60 −50 −50 −50 A516 Grade 65 −60 −50 −40 −25 A537 Class 1 ... ... −75 −50 (Over 21⁄2 –4 in.) A662 Grade A −75 −75 ... ... A662 Grade B −60 −60 ... ... IV 15 12 A203 Grade B −90 −90 −75 ... A203 Grade E −150 −150 −125 ... A203 Grade F (4 in. max) ... ... −160 −160 A299 +20 +30 +30 +40 A516 Grade 70 −50 −40 −30 −20 A537 Class 1 (21⁄2 in. max) −80 −75 −75 ... A537 Class 2 (Over ... ... −75 −50 21⁄2 –4 in.) A662 Grade C −50 −50 ... ... V 20 15 A203 Grade F −160 −160 ... ... A537 Class 2 (21⁄2 in. max) −90 −90 −90 ... A612 −50 ... ... ... A724 Grade A −50 ... ... ... Lateral Expansion Mils. Minimum Each Specimen --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Transverse Test VI 15 A353 −320 −320 ... ... A553 Type I −320 −320 ... ... A553 Type II −275 −275 ... ... A645 −275 −275 ... ... A A A517 all (21⁄2 in. max thickness) ... ... A724 Grade B −50 ... ... ... A Testing temperature as specified in the purchase order, but no higher than 32°F. B Class I is Other Than Killed with a specified minimum tensile strength of 65 ksi or lower. Class II is Other Than Killed with a specified minimum tensile strength of over 65 ksi to 75 ksi. Class III is Killed with a specified minimum tensile strength of 65 ksi or lower. Class IV is Killed with a specified minimum tensile strength of over 65 ksi to 75 ksi. Class V is Killed with a specified minimum tensile strength of over 75 ksi to but not including 95 ksi. Class VI is Killed with a specified minimum tensile strength of 95 ksi or over. C Full size (10 by 10 mm) specimens. Copyright ASTM International Provided by IHS under license with ASTM 22 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A1.16 Charpy V-Notch Test Acceptance Criteria for Various Subsize SpecimensA Full Size, 10 by ⁄ 34 Size, 10 by ⁄ Size, 10 by 23 ⁄ Size, 10 by 5 12 13⁄ Size, 10 by ⁄ Size, 10 by 14 10 mm 7.5 mm 6.7 mm mm 3.3 mm 2.5 mm ft·lbf [J] ft·lbf [J] ft·lbf [J] ft·lbf [J] ft·lbf [J] ft·lbf [J] 40 [54] 30 [41] 27 [37] 20 [27] 13 [18] 10 [14] 35 [48] 26 [35] 23 [31] 18 [24] 12 [16] 9 [12] 30 [41] 22 [30] 20 [27] 15 [20] 10 [14] 8 [11] 25 [34] 19 [26] 17 [23] 12 [16] 8 [11] 6 [8] 20 [27] 15 [20] 13 [18] 10 [14] 7 [10] 5 [7] 16 [22] 12 [16] 11 [15] 8 [11] 5 [7] 4 [5] 15 [20] 11 [15] 10 [14] 8 [11] 5 [7] 4 [5] 13 [18] 10 [14] 9 [12] 6 [8] 4 [5] 3 [4] 12 [16] 9 [12] 8 [11] 6 [8] 4 [5] 3 [4] 10 [14] 8 [11] 7 [10] 5 [7] 3 [4] 2 [3] 7 [10] 5 [7] 5 [7] 4 [5] 2 [3] 2 [3] A Interpolation shall be made for specimens with widths intermediate of those listed. Interpolated values shall be rounded to the nearest whole number as prescribed in Practice E29. TABLE A1.17 Permissible Variations in Width for Mill Edge Carbon Steel and High-Strength Low-Alloy Steel Plates Produced on Strip Mills NOTE 1—Applies to plates produced from coil and plates produced from plate-as-rolled. Specified Width, in. Variations over SpecifiedWidth, inA To 14, excl ⁄ 7 16 14 to 17, excl 12 ⁄ 17 to 19, excl ⁄ 9 16 19 to 21, excl ⁄ 58 21 to 24, excl ⁄ 11 16 24 to 26, excl 13⁄16 26 to 28, excl 15⁄16 28 to 35, excl 11⁄8 35 to 50, excl 11⁄4 50 to 60, excl 11⁄2 60 to 65, excl 15⁄8 65 to 70, excl 13⁄4 70 to 80, excl 17⁄8 80 and over 2 A No permissible variation under specified width. A2. PERMISSIBLE VARIATIONS IN DIMENSIONS, ETC.—SI UNITS A2.1 Listed herein are permissible variations in dimensions, and notch toughness information, expressed in SI units. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 23 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.1 Permissible Variations in Thickness for Rectangular Plates NOTE 1—Permissible variation under specified thickness, 0.3 mm. NOTE 2—Thickness shall be measured 10 to 20 mm from the longitudinal edge. NOTE 3—For specified thicknesses other than those shown, the tolerances for the next higher thickness shall apply. NOTE 4—For thickness measured at any location other than that specified in Note 2, the permissible maximum over tolerance shall be increased by 75 %, rounded to the nearest 0.1 mm. Specified Tolerance Over Specified Thickness for Widths Given in Millimetres, mm Thickness, 1200 and Over 1200 to 1500 to 1800 to 2100 to 2400 to 2700 to 3000 to 3300 to 3600 to 4200 and mm Under 1500, excl 1800, 2100, 2400, 2700, 3000, 3300, 3600, 4200, Over excl excl excl excl excl excl excl excl 5.0 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 5.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 6.0 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 1.1 7.0 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 1.2 1.4 8.0 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 1.2 1.4 9.0 0.8 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.3 1.5 10.0 0.8 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.3 1.5 1.7 11.0 0.8 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.3 1.5 1.7 12.0 0.8 0.8 0.8 0.8 0.8 0.9 1.0 1.0 1.3 1.5 1.8 14.0 0.8 0.8 0.8 0.8 0.9 0.9 1.0 1.1 1.3 1.5 1.8 16.0 0.8 0.8 0.8 0.8 0.9 0.9 1.0 1.1 1.3 1.5 1.8 18.0 0.8 0.8 0.8 0.8 0.9 1.0 1.1 1.2 1.4 1.6 2.0 20.0 0.8 0.8 0.8 0.8 0.9 1.0 1.2 1.2 1.4 1.6 2.0 22.0 0.8 0.9 0.9 0.9 1.0 1.1 1.3 1.3 1.5 1.8 2.0 25.0 0.9 0.9 1.0 1.0 1.0 1.2 1.3 1.5 1.5 1.8 2.2 28.0 1.0 1.0 1.1 1.1 1.1 1.3 1.4 1.8 1.8 2.0 2.2 30.0 1.1 1.1 1.2 1.2 1.2 1.4 1.5 1.8 1.8 2.1 2.4 32.0 1.2 1.2 1.3 1.3 1.3 1.5 1.6 2.0 2.0 2.3 2.6 35.0 1.3 1.3 1.4 1.4 1.4 1.6 1.7 2.3 2.3 2.5 2.8 38.0 1.4 1.4 1.5 1.5 1.5 1.7 1.8 2.3 2.3 2.7 3.0 40.0 1.5 1.5 1.6 1.6 1.6 1.8 2.0 2.5 2.5 2.8 3.3 45.0 1.6 1.6 1.7 1.8 1.8 2.0 2.3 2.8 2.8 3.0 3.5 50.0 1.8 1.8 1.8 2.0 2.0 2.3 2.5 3.0 3.0 3.3 3.8 55.0 2.0 2.0 2.0 2.2 2.2 2.5 2.8 3.3 3.3 3.5 3.8 60.0 2.3 2.3 2.3 2.4 2.4 2.8 3.0 3.4 3.4 3.8 4.0 70.0 2.5 2.5 2.5 2.6 2.6 3.0 3.3 3.5 3.6 4.0 4.0 80.0 2.8 2.8 2.8 2.8 2.8 3.3 3.5 3.5 3.6 4.0 4.0 90.0 3.0 3.0 3.0 3.0 3.0 3.5 3.5 3.5 3.6 4.0 4.4 100.0 3.3 3.3 3.3 3.3 3.5 3.8 3.8 3.8 3.8 4.4 4.4 110.0 3.5 3.5 3.5 3.5 3.5 3.8 3.8 3.8 3.8 4.4 4.4 120.0 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 4.8 4.8 130.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 5.2 5.2 140.0 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 5.6 5.6 --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- 150.0 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 5.6 5.6 160.0 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 5.6 5.6 180.0 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 5.4 6.3 6.3 200.0 5.8 5.8 6.0 6.0 6.0 6.0 6.0 6.0 6.0 7.0 7.0 250.0 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 8.8 300.0 7.5 7.5 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 Copyright ASTM International Provided by IHS under license with ASTM 24 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.2 Permissible Variations in Width and Length for Sheared Plates 40 mm and Under in Thickness; Length only for Universal Mill Plates 65 mm and Under in Thickness Specified Dimensions, mm Permissible Variations over Specified Width and LengthA for Thicknesses Given in millimetres, mm Length Width To 10, excl 10 to 16, excl 16 to 25, excl 25 to 50, inclB Width Length Width Length Width Length Width Length To 3 000 excl to 1500 excl 10 13 11 16 13 19 16 25 1500 to 2100 excl 11 16 13 17 16 22 19 25 2100 to 2700 excl 13 19 16 22 19 25 25 29 2700 and over 16 22 19 25 22 29 29 32 3 000 to 6 000 excl to 1500 excl 10 19 13 22 16 25 19 29 1500 to 2100 excl 13 19 16 22 19 25 22 32 2100 to 2700 excl 14 22 17 24 21 29 25 35 2700 and over 16 25 19 29 22 32 29 35 6 000 to 9 000 excl to 1500 excl 10 25 13 29 16 32 19 38 1500 to 2100 excl 13 25 16 29 19 32 22 38 2100 to 2700 excl 14 25 17 32 22 35 25 38 2700 and over 17 29 22 32 25 35 32 44 9 000 to 12 000 excl to 1500 excl 11 29 13 32 16 35 19 41 1500 to 2100 excl 13 32 16 35 19 38 22 41 2100 to 2700 excl 14 32 19 35 22 38 25 48 2700 and over 19 35 22 38 25 41 32 48 12 000 to 15 000 excl to 1500 excl 11 32 13 38 16 41 19 48 1500 to 2100 excl 13 35 16 38 19 41 22 48 2100 to 2700 excl 16 35 19 38 22 41 25 48 2700 and over 19 38 22 41 25 44 32 48 15 000 to 18 000 excl to 1500 excl 13 44 16 48 19 48 22 57 1500 to 2100 excl 16 44 19 48 22 48 25 57 2100 to 2700 excl 16 44 19 48 22 48 29 57 2700 and over 22 44 25 51 29 57 32 64 18 000 and over to 1500 excl 14 51 19 54 22 57 25 70 1500 to 2100 excl 19 51 22 54 25 57 29 70 2100 to 2700 excl 19 51 22 54 25 57 32 70 2700 and over 25 51 29 60 32 64 35 76 A Permissible variation under specified width and length: 6 mm. By agreement, these permitted variations may be taken all over, in which case the sum of these permitted variations applies. B Permissible variations in length apply also to Universal Mill plates up to 300 mm in width for thicknesses over 50 to 65 mm, incl, except for alloy steel up to 50 mm thick. TABLE A2.3 Permissible Variations in Rolled Width for Universal Mill Carbon Steel, High-Strength Low-Alloy Steel Plates, and Alloy Steel Plates 400 mm and under in Thickness --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- NOTE 1—Permissible variation under specified width shall be 3 mm. Variations Over Specified Width for Thickness Given, mm Specified Width, Over Over 10 to 16 to 25 to mm To 10, 50 to 250 to 16, 25, 50, excl 250, 400, excl excl excl incl incl Over 200 to 500, 3 3 5 6 10 13 excl 500 to 900, excl 5 6 8 10 11 14 900 and over 8 10 11 13 14 16 Copyright ASTM International Provided by IHS under license with ASTM 25 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.4 Permissible Variations in Diameter for Sheared Circular Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Plates 25 mm and under in Thickness NOTE 1—No permissible variations under specified diameter. Permissible Variations Over Specified Diameter Specified for Thicknesses Given, mm Diameters, mm To 10, 10 to 16 to 25, excl 16, excl incl To 800, excl 6 10 13 800 to 2100, excl 8 11 14 2100 to 2700, excl 10 13 16 2700 to 3300, excl 11 14 17 3300 and over 13 16 19 TABLE A2.5 Permissible Variations in Width and Length for Rectangular Carbon Steel and High-Strength Low-Alloy Steel --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Plates when Gas Cutting is Specified or Required NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2—Plates with universal rolled edges will be gas cut to length only. Specified Thickness, mm Variations Over for All Specified Widths or Lengths, mm To 50, excl 13 50 to 100, excl 16 100 to 150, excl 19 150 to 200, excl 22 200 to 400, incl 25 TABLE A2.6 Permissible Variations in Diameter for Gas-Cut Circular Carbon Steel and High-Strength Low-Alloy Steel Plates NOTE 1—No permissible variations under specified diameter. Variations Over Specified Diameter for Thicknesses Given, mm Specified Diameters, 200 to 25 to 50 to 100 to 150 to mm To 25, 400, 50, 100, 150, 200, excl excl excl excl excl excl To 800, excl 10 10 13 13 16 19 800 to 2100, 10 13 13 16 19 22 excl 2100 to 2700, 13 14 16 19 22 25 excl 2700 to 3300, 13 14 17 22 25 29 excl 3300 and over 16 19 22 25 29 32 TABLE A2.7 Permissible Camber for Carbon Steel Sheared or Gas-Cut Rectangular Plates all Thicknesses NOTE 1—Camber, as it relates to plates, is the horizontal edge curvature in the length, measured over the entire length of the plate in the flat position. Maximum permissible camber, mm = length in millimetres/500 Copyright ASTM International Provided by IHS under license with ASTM 26 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.8 Permissible Camber for Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Universal Mill Plates and High- Strength Low-Alloy Steel and Alloy Steel Sheared or Gas-Cut Rectangular Plates NOTE 1—Camber, as it relates to plates, is the horizontal edge curvature in the length, measured over the entire length of the plate in the flat position. Width, mm Camber for Width Given, mm To 750, incl Length/300 Over 750 to 1500 Length/250 TABLE A2.9 Permissible Variations from Flatness for Carbon Steel Plates NOTE 1—Flatness Variations for Length—The longer dimension specified is considered the length, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 4000 mm in length, or in any 4000 mm of longer plates. NOTE 2—Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation in flatness along the length and across the width shall not exceed 6 mm in each direction. When the longer dimension is from 900 to 1800 mm, inclusive, the flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 6 mm. NOTE 4—The tolerances given in this table apply to plates that have a minimum specified tensile strength not over 415 MPa or comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the limits given in the table are increased to 11⁄2 times the amounts in the above table. NOTE 5—This table and notes cover the flatness tolerances of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 6—Plates shall be in a horizontal position on a flat surface when flatness is measured. Specified Thickness, Permissible Variations from a Flat Surface for Specified Widths, mm mm To 900, 900 to 1200 to 1500 to 1800 to 2100 to 2400 to 2700 to 3000 to 3600 to 4200 and excl 1200 1500 1800 2100 2400 2700 3000 3600 4200 0ver To 6, excl 14 19 24 32 35 38 41 44 48 ... ... 6 to 10, excl 13 16 19 24 29 32 35 38 41 ... ... 10 to 12, excl 13 14 16 16 19 22 25 29 32 48 54 12 to 20, excl 11 13 14 16 16 19 25 25 29 38 51 20 to 25, excl 11 13 14 16 16 16 19 22 25 35 44 25 to 50, excl 10 13 13 14 14 16 16 16 18 29 38 50 to 100, excl 8 10 11 13 13 13 13 14 16 22 29 100 to 150, excl 10 11 13 13 14 14 16 19 22 22 25 150 to 200, excl 11 13 13 16 18 19 22 22 25 25 25 200 to 250, excl 13 13 16 18 19 21 22 24 25 25 25 250 to 300, excl 13 16 19 21 22 24 25 25 25 25 25 300 to 400, incl 16 19 21 22 24 25 25 25 25 25 ... TABLE A2.10 Permissible Variations in Width and Length for Rectangular Alloy Steel Plates when Gas Cutting is Specified or Required NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2—Plates with universal rolled edges will be gas cut to length only. Specified Thickness, mm Variations Over for All Specified Widths and Lengths, mm To 50, excl 19 50 to 100, excl 25 100 to 150, excl 29 150 to 200, excl 33 200 to 400, incl 38 --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 27 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.11 Permissible Variations in Diameter for Gas Cut Circular Alloy Steel Plates NOTE 1—No permissible variations under specified diameter. Variations Over Specified Diameter for Thicknesses Given, mm Specified 200 to Diameter, mm 25 to 50 to 100 to 150 to To 25, 400, 50, 100, 150, 200, excl incl excl excl excl excl To 800, excl 13 13 19 19 25 25 800 to 2100, excl 13 16 22 25 29 32 2100 to 2700, excl 16 19 25 29 32 35 2700 to 3300, incl 22 25 29 32 35 38 TABLE A2.12 Permissible Variations from Flatness for High-Strength Low-Alloy Steel and Alloy Steel Plates NOTE 1—Flatness Tolerances for Length—The longer dimension specified is considered the length and variations from a flat surface along the length shall not exceed the tabular amount for the specified width in plates up to 4000 mm in length, or in any 4000 mm of longer plates. NOTE 2—Flatness Tolerances for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- NOTE 3—When the longer dimension is under 900 mm, the variation shall not exceed 10 mm. When the larger dimension is from 900 to 1800 mm, incl, the variation shall not exceed 75 % of the tabular amount for the specified width. NOTE 4—This table and notes cover the tolerances for flatness of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 5—Plates shall be in a horizontal position on a flat surface when flatness is measured. Flatness Tolerances for Specified Widths, mm Specified Thickness, To 900, 900 to 1200 to 1500 to 1800 to 2100 to 2400 to 2700 to 3000 to 3600 to 4200 and mm excl 1200 1500 1800 2100 2400 2700 3000 3600 4200 over To 6, excl 21 29 35 48 51 57 60 67 70 ... ... 6 to 10, excl 19 24 29 35 44 48 51 57 60 ... ... 10 to 12, excl 19 22 24 24 29 33 38 41 48 70 79 12 to 20, excl 16 19 21 22 25 29 32 35 41 57 76 20 to 25, excl 16 19 22 22 24 25 29 33 38 51 67 25 to 50, excl 14 16 19 21 22 24 25 25 25 41 57 50 to 100, excl 13 14 18 19 19 19 19 22 25 32 41 100 to 150, excl 14 18 19 19 22 22 24 29 32 32 38 150 to 200, excl 16 19 19 24 25 29 32 33 38 38 38 200 to 250, excl 19 21 24 25 29 32 33 35 38 38 38 250 to 300, excl 19 24 29 32 33 35 38 38 38 38 38 300 to 400, incl 22 25 30 33 35 38 38 38 38 38 38 Copyright ASTM International Provided by IHS under license with ASTM 28 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.13 Waviness Tolerances for Rectangular Plates, Universal Mill Plates, Circular Plates, and Sketch Plates NOTE 1—Waviness denotes the deviation of the top or bottom surface from a horizontal line, when the plate is resting on a flat surface, as measured in an increment of less than 4000 mm of length. The waviness tolerance is a function of the flatness tolerance as obtained from Tables A 2.9 and A 2.12. Flatness When Number of Waves in 4000 mm is: Tolerance from Tables A2.9 and 7 1 2 3 4 5 6 A2.12 8 8 6 5 3 3 2 2 10 10 8 5 5 3 2 2 11 11 8 6 5 3 3 2 13 13 10 8 5 5 3 2 14 14 11 8 6 5 3 2 16 16 13 10 6 5 3 2 17 17 13 10 8 5 5 2 19 19 14 11 8 6 5 2 21 21 16 11 8 6 5 2 22 22 17 13 10 6 5 2 24 24 17 13 10 8 6 5 25 25 19 14 11 8 6 5 29 29 22 16 13 10 6 5 32 32 24 17 13 10 8 6 35 35 27 19 14 11 8 6 38 38 29 22 16 13 10 6 41 41 32 24 17 13 10 8 44 44 33 25 19 14 11 8 48 48 37 27 21 14 11 8 51 51 38 29 22 16 13 10 54 54 41 30 22 17 13 10 57 57 43 32 24 17 14 10 60 60 46 33 25 19 14 11 64 64 48 37 27 21 14 11 67 67 51 38 29 21 16 11 70 70 52 40 29 22 16 13 73 73 56 41 30 24 17 13 76 76 57 43 32 24 17 14 79 79 60 44 33 25 19 14 TABLE A2.14 Visible Edge Indications Extending Approximately Parallel to Rolled Surfaces Plate Specification Acceptable on Edges Acceptable Remove by Grinding and Thickness Cut in Fabrication Depth LengthA Depth LengthA Depth LengthA Column 1 2 3 4 5 6 Other than killed,B to 50 mm, incl 3 mm, max any over 3 to 6 over 25 mm 6 mm max any mm, incl Killed,C to 150 mm, incl 2 mm, max any over 2 to 3 over 25 mm 3 mm max any mm, incl Killed,C over 150 mm 3 mm, max any over 3 to 13 over 25 mm 13 mm max any mm, incl A Laminar-type discontinuities 25 mm and less in length are acceptable and do not require exploration. B Specifications: A285; A433; A442 in thicknesses to 25 mm, incl; or A455. C The specifications in 1.1 of this standard, other than those listed in the above Table Footnote B. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 29 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.15 Generally Available Grade-Thickness-Minimum Test Temperature Combinations Meeting Charpy V-Notch Requirements Indicated (Normalized or Quenched and Tempered Condition) NOTE 1—The minimum temperatures listed are for longitudinal tests. For transverse tests, the available minimum temperature may be somewhat higher. Acceptance Criteria Charpy V-Notch Test Temperature, °C for Plate Thicknesses Energy Absorption (Unless Otherwise Agreed Upon) Minimum Average Minimum Specification and Grade Over 25 Over 50 Over 75 For 3 For 1 25 mm and ClassA mm to 50 mm to 75 mm to 125 SpecimensB , SpecimenB , Under J J mm, incl. mm, incl. mm, incl. I 14 10 A285 Grade A +4 +16 ... ... A285 Grade B +10 +21 ... ... A285 Grade C +16 +27 ... ... II 18 14 A455 −4 ... ... ... III 18 14 A203 Grade A −68 −68 −60 ... A203 Grade D −101 −101 −87 ... A442 Grade 55 (38 mm max thick- ... −29 ... ... ness) A442 Grade 60 (38 mm max thick- ... −26 ... ... ness) A516 Grade 55 −51 −51 −46 −46 A516 Grade 60 −51 −46 −46 −46 A516 Grade 65 −51 −46 −40 −32 A537 Class 1 (Over 64–100 mm) ... ... −60 −46 A662 Grade A −60 −60 ... ... A662 Grade B −51 −51 ... ... IV 20 16 A203 Grade B −68 −68 −60 ... A203 Grade E −101 −101 −87 ... A203 Grade F (100 mm max) ... ... −107 −107 A299 −7 −1 −1 +4 A516 Grade 70 −46 −40 −35 −29 A537 Class 1 (64 mm max) −62 −60 −60 ... A537 Class 2 (Over 64–100 mm) ... ... −60 −46 A662 Grade C −46 −46 ... ... V 27 20 A203 Grade F −107 −107 ... ... A537 Class 2 (64 mm max) −68 −68 −68 ... A612 −46 ... ... ... A724 Grade A −46 ... ... ... Lateral Expansion mm, Minimum Each Specimen Transverse Test VI 0.38 A353 −196 −196 ... ... A553 Type I −196 −196 ... ... A553 Type II −170 −170 ... ... A645 −170 −170 ... ... C C A517 all (64 mm max thickness) ... ... A724 Grade B −46 ... ... ... A Class I is Other Than Killed with a specified minimum tensile strength of 450 MPa or lower. Class II is Other Than Killed with a specified minimum tensile strength of over 450 to 520 MPa, incl. Class III is Killed with a specified minimum tensile strength of 450 MPa or lower. Class IV is Killed with a specified minimum tensile strength of over 450 to 520 MPa, incl. Class V is Killed with a specified minimum tensile strength of over 520 MPa to but not including 655 MPa. Class VI is Killed with a specified minimum tensile strength of 655 MPa or over. B Full size (10 by 10 mm) specimens. C Testing temperature as specified in the purchase order, but no higher than 0°C. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 30 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE A2.16 Permissible Variations in Width for Mill Edge Carbon Steel and High-Strength Low-Alloy Steel Plates Produced on Strip Mills NOTE 1—Applies to plates produced from coil and plates produced from plate-as-rolled. Variations Over Specified Width, mm Specified Width, mmA To 360, excl 11 360 to 430, excl 13 430 to 480, excl 14 480 to 530, excl 16 530 to 610, excl 17 610 to 660, excl 21 660 to 710, excl 24 710 to 890, excl 29 890 to 1270, excl 32 1270 to 1520, excl 38 1520 to 1650, excl 41 1650 to 1780, excl 44 1780 to 2030, excl 47 2030 and over 51 A No permissible variation under specified width. APPENDIXES (Nonmandatory Information) X1. COILED STEEL X1.1 Continuous wide hot strip rolling mills are normally ence in cooling rate can result in measurable differences in the equipped with coilers. Regardless of the different types of mechanical properties throughout a coil. Data confirm reduced systems employed during or following the rolling operations, it yield and tensile strength, and increased percent elongation, for is common for the steel to be reeled into the coiler at the product with slower cooling rates from the coiling tem- temperatures in the stress-relieving range. In general, such perature to ambient. Such differences are in addition to the temperatures are higher as the steel thickness increases. The effects on mechanical properties caused by differences in heat coils subsequently cool to ambient temperature with outer and analysis and chemical segregation. inner laps cooling more rapidly than central laps. The differ- X2. VARIATION OF TENSILE PROPERTIES IN PLATE-AS-ROLLED X2.1 The tension requirements of this general requirements the Metallurgy of Steel entitled “The Variation of Product specification are intended only to characterize the tensile Analysis and Tensile Properties—Carbon Steel Plates, and properties of a plate-as-rolled for determination of confor- Wide Flange Shapes” (SU/18, SU/19, and SU/20), published in mance to the requirements of the applicable product specifica- September 1974. The data are presented in tables of probability tions. Such testing procedures are not intended to define the that tensile properties at other than the official location may upper or lower limits of tensile properties at all possible test differ from those of the reported test location. locations within a plate-as-rolled. It is well known and docu- mented that tensile properties vary within a plate-as-rolled or X2.3 This general requirements specification contains no individual piece of steel as a function of chemical composition, requirements applicable to product tension tests; conformance processing, testing procedure, and other factors. It is, therefore, to the applicable product specification is determined on the incumbent on designers and engineers to use sound engineer- basis of tests performed at the place of manufacture or --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- ing judgement when using tension test results shown on mill processing prior to shipment, unless otherwise specified. test reports. The testing procedures of this general require- ments specification have been found to provide plate adequate X2.4 A Task Group of ASTM Subcommittee A01.11 has for normal pressure vessel design criteria. determined, based on review of the AISI data6 (SU20), that the variation in tensile properties within a plate-as-rolled can be X2.2 A survey of the variation to be expected in tensile expressed as a function of specified requirements; one standard properties obtained from plates and structural shapes was deviation equals approximately 3 % of required tensile conducted by the American Iron and Steel Institute (AISI).6 strength, 5 % of required yield strength, and 3 percentage The results of this survey are contained in a Contributions to points of required elongation. Copyright ASTM International Provided by IHS under license with ASTM 31 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 X3. VARIATION IN CHARPY V-NOTCH TESTS X3.1 A survey of the variation to be expected in Charpy conditions tested involved as-rolled, normalized, and quench V-Notch test results obtained from three common fine grain and tempered. Sufficient full-size specimens were taken from plate steels was conducted by the American Iron and Steel each sample so that three longitudinal and three transverse Institute (AISI).6 The results of the survey are contained in a specimens could be broken at three test temperatures defined Contributions to the Metallurgy of Steel entitled, “The Varia- for each grade. The data is presented in tables of probability tions of Charpy V-Notch Impact Test Properties in Steel that impact properties at other than the official location which Plates,” (SU/24), published January 1979. The survey data may differ from those of the reported test location. Additional consists of test values obtained from six locations in addition to data of the same type, but utilizing samples from thicker plates, the locations specified in 12.1.3 of this specification. The plate was published by AISI as SU/27.6 X4. RADIUS FOR COLD BENDING X4.1 Suggested minimum inside bend radii for cold form- or gas cut holes should be removed by chamfering or grinding ing are referenced to group Designations A through F as to a radius. defined in Table X4.1. The suggested radii listed in Table X4.2 should be used as minimums in typical shop fabrication. X4.4 If possible, parts should be formed such that the bend Material that does not form satisfactorily when fabricated in line is perpendicular to the direction of final rolling. If it is accordance with Table X4.2 may be subject to rejection necessary to bend with the bend line parallel to the direction of pending negotiation with the steel supplier. When tighter bends final rolling, a more generous radius is suggested (11⁄2 times are required, the manufacturer should be consulted. applicable value given in Table X4.2 for bend lines perpen- dicular to the direction of rolling). X4.2 The bend radius and the radius of the male die should X4.5 References be as liberal as the finished part will permit. The width across X4.5 Holt, G. E., et al. “Minimum Cold Bend Radii Project the shoulders of the female die should be at least 8 times the - Final Report,” Concurrent Technologies Corporation, January plate thickness. Higher strength steels require larger die open- 27, 1997. ings. The surface of the dies in the area of radius should be smooth. Brockenbrough, R. L., “Fabrication Guidelines for Cold Bending,” R. L. Brockenbrough & Associates, June 28, 1998. X4.3 Since cracks in cold bending commonly originate Both of these references are available from American Iron from the outside edges, shear burrs and gas cut edges should be and Steel Institute, 1101 17th Street NW, Washington, DC removed by grinding. Sharp corners on edges and on punched 20036-4700. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 32 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE X4.1 Group Designations for Cold Bending Class Where Group Specification Grade Where Applicable Applicable DesignationA A203/A203M A, D B B, E C F D A204/A204M A B B C C D A225/A225M C, D D A285/A285M A, B, C A A299/A299M A, B D A302/A302M A, C, D D B E A353/A353M D A387/A387M 1, 2 2, 11, 12 C 1 5, 9, 21, 21L, 22, 22L E 2 5, 9, 21, 22, 91 E A455/A455M C A515/A515M 60 or 65 B 70 C A516/A516M 55 A 60, 65 B 70 C A517/A517M A, B, E, F, H, P, Q, S F A533/A533M 1, 2, 3 A, B, C, D, E E A537/A537M 1, 2B , 3B C 2 C , 3C D A542/A542MD 1, 2 F 3, 4 D 4a E A543/A543M 1, 2, 3 B, C F A553/A553MD D A562/A562M A A612/A612M C A645/A645M D A662/A662M A, B B C C A724/A724M A, C D B E A734/A734MD D A735/A735M 1, 2, 3, 4 E A736/A736M 1, 2, 3 A, C D A737/A737M B, C B A738/A738M A, B D CB C CC D A832/A832M 21V, 22V, 23V E A841/A841M 1, 2 A, B, C C 3 D F A844/A844M D A1017/A1017M 23, 122 D 92, 911 E A1041/A1041M 315, 315T F A Steels in Groups A to E inclusive are grouped on the basis of similar specified values for minimum elongation in 2 in. [50 mm]; Group F includes steels that have a specified minimum elongation in 2 in. [50 mm] of 16 or less, and steels that have a ratio of specified minimum tensile strength to specified minimum yield strength of 1.15 or less. B For thicknesses of 4 in. [100 mm] and less. C For thicknesses over 4 in. [100 mm]. D For any type. --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`--- Copyright ASTM International Provided by IHS under license with ASTM 33 Licensee=ISATIS Group http://st2014.ir No reproduction or networking permitted without license from IHS Not for Resale, 11/08/2013 23:25:25 MST  A20/A20M − 13 TABLE X4.2 Suggested Minimum Inside Radii for Cold BendingA Thickness (t), in. [mm] Group Over 3⁄4 in. [20 mm] Over 1 in. [25 mm] DesignationB Up to ⁄4 in. Over 2 in. 3 to 1 in. [25 mm], to 2 in. [50 mm], [20 mm] [50 mm] incl incl A 1.5t 1.5t 1.5t 1.5t B 1.5t 1.5t 1.5t 2.0t C 1.5t 1.5t 2.0t 2.5t D 1.5t 1.5t 2.5t 3.0t E 1.5t 1.5t 3.0t 3.5t F 1.75t 2.25t 4.5t 5.5t A Values are for bend lines perpendicular to the direction of final rolling. These radii apply when the precautions listed in X4.2 are followed. If bend lines are parallel to the direction of final rolling, multiply values by 1.5. B Steels specifications included in the group designations may not include the entire thickness range shown in this table. SUMMARY OF CHANGES Committee A01 has identified the location of selected changes to this standard since the last issue (A20/A20M – 11) that may impact the use of this standard. (Approved Oct. 1, 2013.) (1) Revised Section 11.6.1. (3) Deleted Note 4 from 19.1.1. (2) Revised Table Footnote A in Table A1.2 and Table A2.2. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. 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